I really don't care about the mail client (I'm completely Googled by now), but full BT profiles would indeed be kewl.

And, as just anyone this side of Aldebaran already knows, I'm really pining for a full set of productivity apps (Abiword, g*ddammit!).

Last but not least, I really would like to see a decent printing subsystem in the 770, although that would, for me at least, only be really useful with the aforementioned BT profiles. And with Abiword!!!!