Over at the OQO Talk forums, neonatal member TRF's initial claims to have successfully hacked his OQO to run OS X Leopard was met only with scorns and cries of hoax. But a couple of days later, TRF seems to have silenced the nay-sayers, and proven to their satisfaction that it isn't simply a skinjob.
TRF's Leopard-running OQO boots in 2 minutes and 30 seconds, which would probably sound more atrocious to me if my current Leopard install didn't take just about the same amount of time to boot (I need to reinstall). Better yet, everything seems to work, including WiFi, sound, power management and Bluetooth. The only thing missing is WWAN, which may be within reach.
Whether running Vista or OS X, the OQO's always going to be so small as to be useless in my eyes. But there's no doubt I irrationally lust for one more when it's on Leopard.