The Nexus One smartphone is now compatible with AT&T’s 3G network in the United States. Though the unlocked device can be used with SIM cards from most GSM operators worldwide, frequency differences meant its 3G compatibility was previously limited to T-Mobile’s network in the U.S. The Android-based device also now runs on Rogers Wireless’ 3G network in Canada. News of the expanded compatibility will certainly provide additional options for users of the well-hyped smartphone and help level out the playing field with Apple’s iPhone, which also runs on AT&T.
