Apple has seeded developers with the second preview of OS X 10.8 Mountain Lion. The download is, again, available via the Mac App Store, and developers must get a redemption code from the Mac OS X Development Portal in order to download. Apple is yet to provide release notes for the second version, so send in what you find to tips@9to5mac.com. The build number for this new preview isĀ 12A154q. Mountain Lion brings many iOS 5 features to the Mac including AirPlay Mirroring, Game Center, Notification Center, and a Messages client.

Update: Apple has also seeded Mac OS X 10.7.4 to developers.