A quick change of Gatekeepers default preference lets you install software acquired from any source.

August 2012 is our bet: That syncs with Snow Leopards Aug.

Even that, though, is a guess, since Apples on new ground here.

It usually unveils an OS a year or more before it ships, then pins a release month at its June developer conference.

In 2009, for instance, it told users to expect Snow Leopard in September, but beat that by a few days.

Last year, it pegged Lions release to July, which it met with 11 days to spare.

What about the preview Can I get that now Only if youre a registered Apple Mac developer.

How much will Mountain Lion cost Apple hasnt said, but if its not 29.99 or less well eat our hats.

That was the price of Lion last year -- and 2009s Snow Leopard was 29.

And while Apple hasnt officially committed to under-30 for all upgrades, Mountain Lion is, like Snow Leopard, an incremental update, rather than the more ambitious Lion.

How is Apple distributing Mountain Lion Like Lion, through the Mac App Store.

Get Os X Mountain Lion Download The Multi

Although Apple offered Lion on a flash drive last year to quell concerns from some that they didnt have the bandwidth to download the multi-gigabyte upgrade, according to Pocketlint, the company wont repeat the USB offer with Mountain Lion.

Get Os X Mountain Lion Code Is Ready

The developer preview requires Lion or Snow Leopard, and although it makes sense -- together those two editions powered 80 of all Macs that went online in January -- that could change by the time the final code is ready.

Apple has also told developers which Macs will run Mountain Lions preview.

The list excludes such notable systems as the now-discontinued white MacBook, the first-generation MacBook Air and all iMacs prior to the August 2007 20- and 24-in.

With some exceptions, Macs sold from 2008 forward will run Mountain Lion, while 2009 and later models are guaranteed to run the new OS.

As with other system requirements, the out-in-the-cold list could change by the time Apple ships OS X Mountain Lion.

How many machines do I get to put Mountain Lion on for my 30 Since the upgrade will be delivered through the Mac App Store, the markets guidelines apply: All your personally-owned Macs can be upgraded for the one price.

How can I get a free copy of Mountain Lion Buy a new Mac this summer.

Later, it extended the offer to cover all Macs that were sold equipped with Snow Leopard, no matter the sales date.

Apple will likely run a similar Up-to-Date deal this year with Mountain Lion.

How do I upgrade them Not sure, but going by Apples past practice, youll probably buy upgrade licenses in bulk then use a single redemption code to download an installer from the Mac App Store that you deploy and run on each machine.

Will I be able to run any Mac application on Mountain Lion Ive heard Apples blocking some apps.

Youre talking about Gatekeeper, the new security model that will by default let you install only software downloaded from the Mac App Store or programs created by authorized developers.

Gatekeeper is Apples reaction to last years spread of the Mac Defender malware, which was tucked into fake security software: Gatekeeper will prevent such scareware from ending up on your Mac.

But Apple isnt locking Macs to the Mac App Store, as it does with iPhone and iPads, which -- unless theyre hacked, or jailbroken -- can run only apps obtained from the App Store.

How To Get Os X Mountain Lion For Free