I know this is an old topic and I'm sure I've seen a petition similar before but it can't hurt to ask again.Quoting one of the petition supporters 'As more and more webradios use AAC+ for encoding, iTunes is becoming more and more useless for online radio listening.'
Shouldn't you rename that petition to "HE-AAC in Quicktime?"?
I could do as long as it meant I could listen to a AAC+ radio streams in iTunes.
This cannot be added through QT plugins, as .mp4 containers will always be handled by Apple's demuxers/decoders.
Quicktime has not seen a significant update in almost four years, and it starts to hurt OS X as a multimedia platform. Either Apple is developing a major new version (QT8 I guess) or they've put their QT programmers on different projects.