See Garret Rogers posting on recent advances in Google Voice for Mobile devices. Here is an excerpt:
Today, Google launched their mobile application for Google Voice, the most impressive Google service yet. With Google Voice, if you haven’t heard of it yet, you can consolodate all your phone numbers into a single “Google Number”. The mobile app is currently available on Blackberry and Android devices.
Learn more on from the video below. Is Skype at risk ?