With regard to a2dp, we will hopefully get started on it next week. There's a dsp-sbc garage project to house it, and a dsp-sbc-devel list for those who might want to be part of the development. I'm planning to use a similar setup to the dsp-tremor ARM-side and DSP task code, and then we need to get cracking on porting the sbc code to run in a thread started by the DSP task....