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Mac OS X Lion developer preview released

Apple has released the first developer preview of Mac OS X Lion and updated its information page on the operating system.

With this announcement comes new information on Lion's features, including AirDrop, which allows for zero-configuration, wireless file sharing between Macs; a global auto-save, which saves your work for you and Versions, which automatically saves versions of documents you're working on and provides a Time Machine-like interface for browsing them.

Mail.app has also been re-hauled and closely resembles Mail on the iPad.

Apple's Lion features page has been updated with additional information. With Mission Control, Launchpad and full-screen apps, the Mac OS is looking more like is younger sibling, iOS, than ever.

Paid Mac dev center participants can download copies of Mac OS X Lion from the Mac App Store by requesting a redemption code from their developer account. One code is generated per account, and the "purchase" is stored and associated with that account for any future re-downloads.

If you are a developer, and have access to the preview release, make sure you carefully check the system requirements before installing Lion; you'll need a 64-bit Intel-based Mac running Mac OS X Snow Leopard 10.6.6 or later. You will be able to install Lion on computers registered to your account, but Apple recommends that you use a separate partition or a computer that is dedicated to Lion-only development.

Specific details about the new OS beyond Apple's press releases remain behind the NDA wall. You may discuss the new OS on Apple's developer forums.



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Apple has released the first developer preview of Mac OS X Lion and updated its information page on the operating system. With this...
 

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jayweiss

The way to stop your endless-loop possibility is to boot with the SPACEBAR held down. This boots the OS without running an extensions, or startup items, or resuming applications.

February 28 2011 at 5:05 PM Report abuse rate up rate down Reply
Tom Craft

Thanks!

February 25 2011 at 6:38 PM Report abuse rate up rate down Reply
Robert

One other issue that I suspect will not affect many but still worth mentioning:

I've used an application called "Dockable" for years. It essentially creates "applications" out of OS functions such as "Shut down," "Restart," "Empty trash," etc. When I want to restart, for example, I merely double click the "Restart" button in my dock and off we go. Unfortunately, Lion's new "Resume" function attempts to load the applications which were running at the time of restart, creating an endless loop of Restart-Login-Restart. The only way I could circumvent the issue was to boot up in Safe mode and delete the Dockables' "Restart" application. I also deleted Dockables' "Shut down" application because it no doubt would shut down my Mac upon login. With all of this said, were is Lion's "Resume" program list stored, anyway? I was hoping Resume was somewhere within System Preferences to allow allow at least some user control. As is, this Resume "thing," while great on "paper," is going to cause serious problems. Beware!!!

February 24 2011 at 7:01 PM Report abuse rate up rate down Reply
Mark Bowman

Holy Cr** look at that Mail toolbar. My god is that ugly. Huge step back from the Color icons in the current version of mail.

February 24 2011 at 6:14 PM Report abuse rate up rate down Reply
1 reply to Mark Bowman's comment
Robert

It's even worse in person. I can't believe Apple would find those toolbar buttons even remotely aesthetic. Simplicity is one thing, but come on. This is 2011.

February 24 2011 at 7:09 PM Report abuse rate up rate down Reply
howie

I wonder if this means that there will no longer be a dedicated server version of Mac OS X. While Apple favors secrecy with all of their products before they're released, they really should give us more info on enterprise products. Businesses make a lot of decisions well ahead of their purchase dates. It's hard to decide on long term I.T. strategy when Apple won't divulge anything almost until the last minute.

February 24 2011 at 5:33 PM Report abuse rate up rate down Reply
Robert

Someone needs to tell Apple that going back to greyscale throughout the OS is a poor decision. Apple Mail's toolbar, for example, is now a drab disaster. I mean, heck...we have $2500 displays with 12-bit lookup tables so why go with 3-color toolbars/sidebars? It looks stupid. Let's not go back to the 1950s, no matter how "artistic" and "trendy" it might appear.

P.S. I'd post up a photo of Mail's toolbar on my Dropbox account but Dropbox is no longer compatible with the OS (10.7). I noticed Skitch is acting a bit goofy, too.

February 24 2011 at 5:08 PM Report abuse rate up rate down Reply
4 replies to Robert's comment
Will

Can anyone confirm whether this will or will not work on a Mac Pro '06 ? The Mac Pro is 64bit, but also has a 32bit GPU path, so, just want to check if Lion is (so far) going to work.

February 24 2011 at 1:13 PM Report abuse rate up rate down Reply
dvddesign

I'm not happy about this.

Lion is shaping up to be a dumbed down experience for OSX users. Why bother with an expensive computer if it's just the iOS interface slapped on pricier hardware?

And it almost sounds like you're going to have to have a Magic Trackpad/Magic Mouse to use several of these features.

More lock-in. Awesome... Granted, I've got both, but that doesn't mean I want to be locked in.

I'm also seeing an issue with the full screen apps. No clock bar, no status bar. How am I supposed to tell if my battery is running low or my devices are connected on that UI?

I shouldn't have to rely on the physical battery meter on a laptop to tell me if the battery is low. What if I'm running a VNC connection from the other room or at a remote location? I should have to dump out of the app every 5 minutes to see if everything's fine? No thank you.

This feels very much like a half-baked product that's meant to bridge people between some awful mess that 10.8 will inevitably become and refined features that are made smarter from UI changes in how they work. Mission Control feels like Expose with Dashboard integration. And it still doesn't feel like anything I would want to use over the regular app switcher with CMD+Tab.

Auto-save, fine. Auto-resume, great. The different way gestures work versus now, sure. These are all fine, but those big sweeping changes, just don't like what they're offering here, because it seems to be a massive step towards pushing iOS back onto the desktop, someplace where it is not nearly as intuitive with the native hardware.

I tell you, the only step keeping this from being native, is full surface touchscreens, and that's something I really do not want to have to deal with in a desktop computer. It's not what it's for and not what I want.

February 24 2011 at 12:48 PM Report abuse rate up rate down Reply
1 reply to dvddesign's comment
David Schloss

>>I'm also seeing an issue with the full screen apps. No clock bar, no status bar. How am I supposed to tell if my battery is running low or my devices are connected on that UI?
>I shouldn't have to rely on the physical battery meter on a laptop to tell me if the battery is low. What if I'm running a VNC connection from the other room or at a remote location? I should have to dump out of the app every 5 minutes to see if everything's fine? No thank you.

February 25 2011 at 9:44 PM Report abuse rate up rate down Reply
mwittchow7

You can test it out by visiting: http://leimobile.com/want-to-beta-test-mac-os-x-lion/

February 24 2011 at 12:33 PM Report abuse rate up rate down Reply
Jeff

I cant wait for the torrent to leak of this.. I am not paying $100 to play around with it

February 24 2011 at 11:48 AM Report abuse rate up rate down Reply
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