Earlier this month, I wrote about connecting my old Mac mini to my television . My mini offers a great Apple TV-style lifestyle with none of the Apple TV limitations. It's a real Mac running real Snow Leopard, albeit on an older, admittedly limited mini. I have Front Row, EyeTV, QuickTime, and more, all ready to entertain me on demand, as well as standard system access to mail, web browsing, etc.

The sound in my living room is powered by a couple of speakers that shipped with an ancient computer monitor. Their audio works fine for close-up TV watching and Wii playing. Move across the room and those speakers prove how limited they are. Add in a treadmill with its motor noises, and the sound decreases to virtually nothing.

So how can one listen to those great shows that are playing back on that lovely large screen across the room, especially when walking or jogging on the treadmill? I messed around with several solutions until I stumbled across one that really worked well for me. Using my home's 802.11g Wi-Fi network, I could call my iPhone from my Mac using Skype. With only the most minimal of lags, I was able to transmit live audio and watch my favorite shows on the Mac while listening on the iPhone from my treadmill.

Read on to learn how I accomplished this...

I'd never gotten the opportunity to use Rogue Amoeba's Airfoil prior to today, and then I found out about Airfoil Speakers Touch (link opens iTunes). Airfoil allows you to stream audio from your Mac to other devices including Apple TV, Airport Express, other Macs on your network and now the iPhone and iPod touch. We looked at a similar application not too long ago, but the definite upside to Airfoil Speakers Touch is that you don't have to go through the mess of installing a separate server application -- especially if you already own Airfoil.

Using Airfoil Speakers Touch is extremely simple. I opened Airfoil on my Mac for the first time and it showed my laptop and Apple TV on my network. I then launched Airfoil Speakers Touch on my iPhone and it added the iPhone as an available streaming device. I selected iTunes as the source of my audio and clicked on the icon next to the iPhone on the Airfoil application. A quick restart of Airfoil (its Instant Hijack plug-in will bypass that) and I could stream music from iTunes through the iPhone. On the iPhone, a small image of my MacBook (complete with an image of my current desktop) appeared.

The application works beautifully. I left the laptop in my bedroom and carried my iPhone around both inside and outside of the apartment until I left the range of my wireless router. The sound is crystal clear and it turns the iPhone (and 2nd-gen iPod touch) into a great portable speaker.

However, there are a couple of drawbacks. If you exit the application on your iPhone, it will cut off the streaming. Because of this, there's no way to jump over to the Remote application and remotely control iTunes. So if you want to utilize your device as an Airfoil speaker, you need to have a playlist set up in advance since you can't change tracks from within the application itself. I'm hoping remote features will be added some time in the future. It would really make this a killer app.

Airfoil for the Mac is $25, and a free demo is available. It requires OS X 10.4 or above. Airfoil Speakers Touch is a free download through the iTunes App Store.

Rogue Amoeba has announced Airfoil 3.2, the latest release of their audio utility which allows you to play any Mac audio over your Apple TV, AirPort Express, or other Macs. In addition to improving support for the latest generation Expresses ("including full password support and better synchronization"), the big addition with version 3.2 is remote control support. With either the Apple Remote on the Apple TV or the Keyspan Express Remote for an Express, Airfoil now allows you to play/pause and move forward/back on tracks playing through either iTunes or QuickTime Player.

The upgrade is free for registered users, while new copies of Airfoil for Mac are $25; a demo is available.

Rogue Amoeba has announced an update for Airfoil to version 3.1, adding support for sending audio to the Apple TV. Unlike the built-in iTunes support, Airfoil allows you to stream any audio source from your Mac to your Apple TV, Airport Express, or other Macs running their Airfoil Speakers client application. This allows you to use your Apple TV to listen to web-based "radio" sources like Pandora (my favorite) or last.fm, as well as other media players like QuickTime Player, etc.

Airfoil 3.1 is a free update to registered users and $25 for new users. A demo is available for download.

One of my favorite Apple products ever has got to be the Aiport Express. I know it isn't sexy, but AirTunes (that's what Apple calls the technology that lets you stream your music from iTunes to a stereo connected to an Airport Express) is one of the best tech inventions ever. AirTunes, despite my unholy love for it, has some drawbacks: it only works in iTunes, and it only works for audio files.

Enter Airfoil, which just hit version 3. Airfoil allows you to stream audio from any program on your Mac to an Airport Express (or multiple Airport Expresses) and keep all those streams in sync. That's not all, version 3 lets you stream audio from one Mac to another Mac that is running Airfoil Speakers (a mini app that comes with Airfoil), one upping Apple's solution. Airfoil also includes a new video player that allows you to stream audio from most video formats to Airport Expresses (or other Macs) which will make watching some of those HD trailers a much better experience.

Airfoil 3 costs $25, but is a $10 upgrade for all Airfoil 2 users (and if you bought Airfoil after July 16th, 2007 you get a free upgrade).

Rogue Amoeba, purveyors of all sorts of wonderful audio software, have been releasing details on pending updates for two of their most popular products: Airfoil and Audio Hijack Pro. Both upgrades seem like they're coming sometime soon, with Audio Hijack Pro 3 (a tool allowing you to record any audio from your Mac) sounding like it could land sooner rather than later. Details and screenshots (like the one above) of AHP3 are being posted to this forum thread, including thoughts on whether they'll charge an upgrade fee (though prices for new licenses should remain at $32). If Rogue Amoeba wants my two cents (which they admittedly didn't request), I'm all for developers, especially indies, charging upgrade fees for major point releases. It sure is nice when they don't, but I completely understand that underneath all that code and slick features there's a human being that's just trying to survive (and possibly provide) like the rest of us.

Airfoil and Audio Hijack Pro, the slick Mac OS X audio broadcasting and recording (respectively) software from Rogue Amoeba, have just been updated with a handy new feature: minimize to menubar. It's a new preference that (you guessed it) will allow these apps to minimize into the menubar, with some features still accessible without having the entire app open on your desktop. Rogue Amoeba has provided a demonstration video to show off this small but functional new feature.

Airfoil, the handy application for sending any audio to an AirPort Express, has been updated to version 2.0.3 for Mac OS X (remember, it's also available for Windows now). This new version adds the ability to swap audio sources on the fly, as well as a menubar option if you'd rather the app not take up dock space.

Airfoil is a Universal Binary with a demo available (that overlays noise after 10 minutes until you register), while a license from Rogue Amoeba costs $25.

Rogue Amoeba, a leading indie Mac developer, has decided to enter the fast paced world of building Windows applications. Yes, folks, you read that correctly. Rogue Amoeba has ported Airfoil, a neat little application that allows you to stream audio other than iTunes to an Airport Express, to Windows.

I have no idea how many Windows users have Airport Expresses, but more power to Rogue Amoeba. At the moment the Windows app is in a public beta, but before long it'll cost ya $25.