Despite Google's attempt to work with the unlocked market by offering an unsubsidized Nexus One for $529, there's one glaring problem: if you want 3G, you're forced to sign with T-Mobile (thanks to the device supporting HSDPA in the AWS band, which is exclusive to T-Mobile at the moment). Needless to say, AT&T customers are less than thrilled.
Take a look at the labels above, found at the FCC. As Engadget points out, the one on the right is the current Nexus One label, and the one on the left is a new one that's one digit off. Further investigation shows that the new device supports 3G on WCDMA Bands I, II, and V. In other words, that would open up the gates for 3G support on AT&T, Rogers, Bell, and Telus.
it makes sense that Google would want to expand to a far larger customer base (an additional 85 million potential customers on AT&T alone). The only question: when can we expect an announcement?