We all knew it was coming: Google’s Nexus One “super phone” was just unveiled at its press event at the Googleplex.

Thanks to the company’s famous “dogfooding” strategy, many of the device specs were previously leaked. It looks to be the most powerful Android-powered device yet, but that may not last long given the rapid fire roll-outs (most recently, the now-dethroned Droid).

We’re typically not a hardware review house, but we’ll follow up soon with more about what this means for the market. For now, my favorite part has nothing to do with the device itself: The carrier unbolting is a big and symbolic step for the U.S. mobile market.

Find out more or purchase device ($530 unlocked and $179.99 with a two-year T-Mobile contract) here.