As we all know a couple of days ago Apple released iOS 5 beta 7 for developers but devs still have something to look forward to playing with this weekend, as Apple has just seeded a new build of OS X Lion 10.7.2 (build 11c48) to developers, as well as the 10th beta of iCloud for Mac.
And if you were asking if there is something new, then there is no specific change list exists, but Apple apparently has been asking devs to target AirPort, AppKit, GraphicsDrivers, iCal, iChat, Mac App Store, Mail, Spotlight, and Time Machine with the latest builds of OS X 10.7.2, so expect some fixes in those areas.