When I bought my Transformer Prime my thought was to extend it in two valuable directions through the use of Bluetooth.
First, I wanted to use a standard car type Bluetooth headset with Skype, SipDroid, etc. That would turn the Prime into a decent VOIP device. If there is this kind of functionality built in I can't find it. My Bluetooth headset pairs without problem, but the apps insist on using the tablet's mic and speaker.
Second, I bought a miniature Bluetooth keyboard. The Prime doesn't even see this device though it works perfectly with my iPhone.
I'd be thrilled to be told I'm doing something wrong, but I just don't think this functionality is built into the ICS install. Shame.