John

Truphone brings VoIP to Android phones, including Google's Nexus One (Download Squad)

Feb 9th 2010 3:32AM Google voice is available for Android, fully integrated. When I make calls, those calls are automatically routed through google voice. The big problem for most users is that it's invite only, and actually sort of hard to get an invite.

Second, in response to this whole article, SipDroid works everywhere and is pretty good, although it takes a little doing to get started (still very much in dev mode). I think it's eventually going to form the basis of Google's actual VoIP service, whenever that gets started.