Well from what I can make out, my major problem at the moment is the kernel in pdaXrom 1.0.5 simply doesn't have the required -mh patches to get any bluetooth to work.
I have 2.4.18-rmk7-pxa3-embedix, I presume the same as everyone else?
I can get hciconfig to display my device, along with a MAC, and hcitool scan finds stuff; I can ping bluetooth things and pair, but rfcomm point blank refuses to work with errors such as "rfcomm0: no such device" and occasionally "rfcomm: can't open control channel" and suchlike.
My card (Socket Rev G) also refuses to do anything at all if I take it out and put it back in, or suspend, or even don't boot with it inserted. That I can live with for now, I'd rather get rfcomm working to some degree.
But as I say, I believe the rfcomm problem is simply due to the kernel lacking -mh patches. If that's not the case, I'm very happy to debug with someone on IRC.