Cross platform benchs in the near future ?

Over at GeekPatrol, a rather interesting project might materialize in a few weeks. Those guys plan to release a benchmarking application, that would work on the Mac. "There is already XBench", you'll say. But where this app seems promising, is that it will be SMP-aware, run on OSX and Windows (eventually GNU/Linux at a later date), therefore cross-platform. Though not perfect, this might help comparing apples and oranges :)