Well lookie here. A little phone by the name of "NEXUSONE" just slipped through the FCC as model number PB99100 built by HTC. The filing also confirms a few more details including microSD expansion, 802.11b/g WiFi, and Bluetooth 2.1 + EDR. But the real news comes from looking at the radios: quad-band GSM/GPRS/EDGE with UMTS/HSUPA on 850/1700/1900 frequencies. In other words, this 3G phone is capable of both 2Mbps up and 7.2Mbps down for both the T-Mobile and AT&T networks in the US of A. If this device is sold unlocked (as rumored), at a reasonable price (as hoped), and with a jaw dropping user experience (as tweeted), well, it could be very disruptive to the status quo. Then again, that's a lot of ifs.
Update: We're going to pull this back a bit. So far the FCC has posted a trio of reports this morning for the Nexus One but the outcome is inconclusive based on our own continued research and from the discussion in our comments. According to the bands listed (I, IV, and VIII) we're definitely looking at a T-Mobile USA device as well as applicability on European networks (among others). The whole AT&T range is in doubt as the test lab incorrectly lists 815-880MHz frequencies as part of band VIII. Hold tight as we dig deeper.
Update 2: Only WCDMA Band IV was tested in the Part 22H / 24E / 27 Report, leading us to believe that the Nexus One is going to be HSPA 900 / 1700 / 2100 (a pretty common tri-band 3G setup) plus quadband EDGE. Sorry, AT&T, but that's how the cookie crumbles.