Yes, A) i know iOS implementation of AVRCP is limited to play and pause, B) i've spent a couple of days googling around, and i found out about Music Control app, witch isn't what i need. I have a Sony Ericsson MBS-100 speaker that doesn't have volume control buttons. While paired via bluetooth, any way to change the output volume? iTunes won't alow it. This sucks. I must wait for iOS 4.1? Any hacks available?