It all works out of the box almost..... with the latest version of OS2008. Setup the .asoundrc file. *important* if you have fmradio installed make sure it's either removed or not set to speaker (fmradio also affects plugin headphones too). Connect your BT device and sound.... Volume is a bit on the low side. But ... sound.. and the sound icon even changes.

I'm using it right now with xmms .... which is at this time as far from maemo'd as you can get, and it works. Yes the occasional "tape drag" sound but .... it works.

EDIT

Ok vi /etc/hcdi.conf file and change the following 2 sections.

# Default link mode
# none - no specific policy
# accept - always accept incoming connections
# master - become master on incoming connections,
# deny role switch on outgoing connections
lm accept;

to become
lm accept,master;

then edit

# Default link policy
# none - no specific policy
# rswitch - allow role switch
# hold - allow hold mode
# sniff - allow sniff mode
# park - allow park mode
lp rswitch,hold,sniff,park;

and remove rswitch.

end result for me at least is a lot smoother playback.