Did some tests with the RC, it compiles and runs (at least for a quick test) on:
Debian Lenny 5.0.4
Arch Linux (as of 2010-02-26, it is rolling release)
Scientific Linux (Red Hat clone) 5.4

Well, on SL the Intel driver seems to be too old for my card, so it has very poor graphics, but otherwise no problems.

Kristof