More information is trickling in regarding the new features packed into iOS 4.3 beta, and for fans of AirPlay, it looks like we have a winner.
As you're likely already aware of, Apple significantly gimped the functionality of AirPlay in their iOS 4.2.1 release, only allowing streaming from the iPod and YouTube apps. This led jailbreak developers to release tweaks like AllPlay and AirVideoEnabler to circumvent the lack of 3rd party app support.
The good news is that with iOS 4.3, these tweaks should no longer be necessary...