i've got 5 rios all over the house & in the garage so it'd be nice to remotely be able to power them off when i go to sleep, etc.

have you looked at the display server patch? it patches the arf file to include a java applet that allows control of the buttons on the rio. i used it before i got one of the rebranded dells & it powered on/off fine. it doesn't work with the 1.04 arf which i have to use with the dell.