Filed under: Analysis / Opinion, Gaming, Hardware, Software, Odds and ends, Developer, iPhone, SDK, iPod touch
The Wolfenstick app can send and recieve data through the iPhone audio port
This is interesting -- Alex Winston, Ltd. has come up with what they call the Wolfenstick, a little iPhone app that can control Wolfenstein 3D Classic with a second iPhone through the audio port. Obviously this isn't a very practical setup, as buying a second iPhone just to control games on the first one probably isn't in anyone's interest. But it does open up a whole slew of possibilities for how a connection like this might be used -- as you can see in the video above, not only are controls and the accelerometer able to be transferred, but even game and app information can be sent across the cable.
Of course, the 3.0 update casts a nice large shadow across ideas like this -- we know for sure that there will be more hooks for accessories to work with apps on the iPhone, so having to go through the audio port may end up being more of a novelty, as it'll likely be much easier to go through the connector on the bottom of the iPhone. But if you want to play while the unit is charging (or just want to connect two iPhones with nothing more than an audio cable), there's definitely some promise here.
I should say, even before I start this post, that I've moved my iTunes library from one installation of iTunes to another, and what I did was just copy everything in the /Music/iTunes folder from one Mac to the other. But that's the transfer equivalent of parallel parking a semi and stopping when it "feels right" -- it worked for me, but I wouldn't recommend it for anyone else. I also have almost no iTunes purchased music in my library, and that's likely not the case for anyone else.
One of the signs that you've 'made it' as a 3rd party (besides, of course, having great sales) is when other 3rd parties develop tools and apps that work with your app. In this vein, 
Ambrosia Software, those crazy kids with the 
iLounge has posted a review of 
![TUAW [Cafepress]](http://www.blogsmithmedia.com/www.tuaw.com/media/tuaw-cafepress-promo.png)
