OS X 10.8 Mountain Lion DP 2 -NoGrp | 3.43 GB

As noted by The Next Web, Apple has also posted an extensive list of known issues alerting developers to various bugs and missing features that have yet to be addressed.

OS X Mountain Lion is Apple's next major operating system version and is scheduled for release in "late summer". The release will offer greater integration with iCloud, as well as a number of new feature including some drawn from iOS.


OS X Mountain Lion requires a Mac with a 64-bit kernel. Mountain Lion supports the following Mac models:
• iMac (mid 2007 or later)
• MacBook (13-inch Aluminum, 200, (13-inch, Early 2009 or later)
• MacBook Pro (13-inch, Mid-2009 or later), (15-inch, 2.4/2.2 GHz), (17-inch, Late 2007 or later)
• MacBook Air (Late 2008 or later)
• Mac Mini (Early 2009 or later)
• Mac Pro (Early 2008 or later)
• Xserve (Early 2009)