Revision 69 is working great here, using an MSI BT/Wifi Combo card (MS-8255 or something similar was the exact model, I think). It works nicely with my 1st gen iPhone, and is able to extract full caller ID information correctly, and can handle not only the basic answering and call control functions, but dialing as well... which is something I didn't think the iPhone would support.
The only trouble I've run into is the latest BlueZ releases (4.x), as they seem to at least have problems with the 2.6.27 kernel, and will not prompt for the PIN on the computer side of things. I tried upgrading the kernel and replacing various libs and binaries, but only was able to pair after downgrading to the 3.x branch.
Just a heads up for anyone who runs into that. Aside from the BlueZ problems, though, I haven't had any trouble at all with the nohands package, it pretty much 'just worked' for me.
Audio quality was so-so... the outgoing sound was a bit muffled but I can't guarantee my microphone wasn't a factor there. Sound coming in was excellent, though.
As soon as I get the hardware for my carputer, I guarantee it will be part of my setup.