Not sure if it is legal... I spent about two solid days (within two weeks) mining for fun (to me) games that actually work well on the N900. About 450 megs in total size. Not complaining about the two days, since it was fun testing things out.

Of all the tests I did (about 500) I never had a device lock-up,but one game did stay locked in the background and forced the browser ans ulse audio to hang and at over 80% cpu total.

800mhz clock helps out- bunches in regards to performance.