I forgot to mention this, but Geekbench 2.0.11 was released last week. Geekbench 2.0.11 adds support for the MacBook Air and the Xserve (Early 2008), fixes performance problems on PowerPC-based Macs, and fixes a crash on PowerPC-based systems running Mac OS X 10.4.
Geekbench 2.0.11 is a free upgrade for all registered Geekbench 2 users.