Android Gingerbread and Honeycomb show up on AIRBenchmark
At the time of writing, there are build versions showing up, GRH47B and GRH14B, the most recent of which is the Dalvik/1.4.0 (Linux; U; Android 2.3; Nexus One Build/GRH47B. It would appear as though the scores weigh in at 301 for Gingerbread and 584 for Honeycomb, compared to the 577 that Froyo 2.2.1 gives. The downside is that these versions can be faked, so who knows whether this is the real thing or not. Also, I would have thought that Google have their own internal methods for testing things types of things.