Re:No Contract: $149 Android phone, $25 unlimited data and 3...
by georgemcbay on Wednesday February 02, 2011 @01:25PM
(#2171372)
In 2.3 (Gingerbread), SIP is baked right into OS and integrates seamlessly into Google Voice & the regular phone UI, so you don't even have to run an external client.
But Android has sip clients. who needs voice?
Also there are plenty of skype apk patched to behave the same in wifi and 3g, meaning it will go via data no matter what