Per discussion at Audio WG f2f 2013-03-26
AudioContext.createBuffer (synchronous) will be deprecated in favor of decodeAudioBuffer (asynchronous)
Clarification later in f2f meeting: only the version of the method taking an AudioBuffer is to be deprecated
Web Audio API issues have been migrated to Github.
Closing. See https://github.com/WebAudio/web-audio-api/issues for up to date list of issues for the Web Audio API.