Google Phone Works on AT&T

Google is upgrading its Nexus One phone so it can now work on AT&T's 3G network, the main channel for Apple's iPhone. Google's phone initially only worked on AT&T's slower networks, and this update comes sooner than expected. It's another swipe at Apple, which Google hopes to surpass in the cellphone market. Apple is suing HTC, which makes Nexus One, over claims it infringed on its touch-screen patents.