AVRCP works for me in PocketPlayer 4.0 but you have to download the WMP Plugin adapter. It works for me, but only after I start PP first. If I haven't started PP, then WMP starts up. Other than that, I have had full functionality from my BT3030.
http://www.conduits.com/products/pla...gen_wmhost.zip
And then follow these instructions: HTC TouchFLO 3D users: if you have disabled TouchFLO 3D on your Today screen, this plugin is required to enable AVRCP support in Pocket Player. After installing, check the "Intercept WMP" and "HTC WMP" boxes on the Menu > More > Options > Plugins > WM Adapter > Configure screen.