I got a pair of bluetooth headphones that are originally for an iPAQ (the headphone model number is FA303A) that I'd really love to use with my N90.
I can get them to pair with the N90 and it recognises them as "BT Headphones" but the N90 doesn't seem to know what to do with them.
I have Blue Soleil and a dongle for my laptop and I can get audio to stream to the headphones from the PC with no problems.
I can only assume that I need a different bluetooth profile for the phone so it can recognise the headphones for what they are and stream audio to them (A2DP, perhaps?)