Bill: unfortunately the upnp support is quite new, so we don't have controller (send to another renderer) support... for now you need to use mediastremer if you want that on the maemo platform.

For the atabake : yes. you need to
Go to home/user/.atabake, edit config and change from oms to mplayer

We did a lot of improvements on a2dp on the bluetooth stack it will probably be on the next firmware ))) it will REALLY improve the cpu usage when using a2dp!

Marcelo