Interesting concept taking Google Voice mobile:

http://www.informationweek.com/news/...leID=218500501

The Google Voice app will allow users to use their mobile phones to access their inbox, place calls and send SMS messages with their Google Voice number, and make low-rate international calls.

When sending SMS messages in this manner, users don't have to pay SMS charges levied by their mobile carriers because the SMS messages are sent by Google.

Looks like they beat Skype to the BB market, plus I love the ability for avoiding SMS fees when roaming international.