Last night, AirMusic update was submitted to Apple. It includes the following fixes and improvements:

– Songs purchased on iTunes working again
– Background support (need to wake up the app every 10 min though to keep music playing due to iOS limitation)
– Dramatically improved song startup time
– Updated UI to combine Devices & Computers as Connections
– Sony TV Bravia support added
– Windows Media 11 support added
– Now shows album arts on PS3, Bravia TVs, Samsung & more (except XBox)
– More DLNA compatible devices support added
– Added High Quality Streams toggle (turn off if audio is stuttering)
– Fixed crashes due to bad song metadata
– Fixed empty artist folders or duplicate