Since the iPhone came out, there's been a lot of buzz about gPhone's debut. gPhone is Google's prototype of a mobile phone that would offer user-friendly search engine capability (www.google.com, what did you expect!?). In fact, this mobile OS functionality may be its primary attraction as there seem to be very few differences between the gPhone and the iPhone.
Google's also throwing the idea of free mobile service around. You would have to watch a 10-30 second ad before making a call. Surely that's worth $0.40!
Here's the Wiki.