Apple releases Xcode 4.1 GM, iCloud beta 4 and iTunes 10.5 beta 3

Along with iOS 5 beta 3, Apple also released Xcode 4.1 GM and iCloud beta 4 for Mac OS X> The new version of Xcode is practically the final version, but it is available for now only to developers of applications for Mac OS X. You will find in Xcode 4.1 GM support for NSPower from Aqua software, the ability to run fullscreen applications and a new system that automatically fixes errors caused by the way developers built certain applications.

Nothing is known about iCloud beta 4 except that it is necessary to run with Mac OS X Lion GM.

UPDATED: It seems that iTunes 10.5 beta 3 is also available tonight for developers.