(AP) -- Google is taking another swipe at Apple with an upgrade of its Nexus One mobile phone.
The latest version announced Tuesday will work on AT&T's 3G wireless network, the primary communications channel for Apple Inc.'s iPhones in the United States.
The Nexus One had only been able to run on AT&T's slower networks since Google began selling the handset in early January. The switch to AT&T's faster system had been expected.
Google Inc. has been trying to position the Nexus One as a "super" phone that's a cut above Apple's popular iPhone.
Apple is battling back with a lawsuit alleging HTC, the Nexus One's manufacturer, has infringed on Apple's patents for touch-screen technology. The complaint doesn't name Google.
Explore further: Google to sell Nexus One, a 'super' mobile phone (Update)