Apple has just released iOS 5.1 beta to to developers. The update features a build number of 9B5127c, and now allows the ability to delete individual photos from your iOS 5 photo stream.
Photos taken using iOS 5.1 can be deleted from Photo Stream on your device and will be removed automatically from Photo Stream on your other iOS 5.1 devices. Older photos can be manually deleted from your iOS 5.1 devices.
Also available are a new version of Xcode 4.3, as well as a new Apple TV beta. Apple’s original iOS 5.1 beta was seeded two weeks ago on November 28th. You can see the entire change log over at BGR.