the only game i really cared to use Move for was Resident Evil 5. It worked almost as well as RE4 on Wii and made aiming much simpler than using the dualshock.
i would use it more but the games i'm buying for PS3 aren't supporting it. either that or they just forgot to tell people it's an option.
here's hoping RE6 will support it. otherwise it may continue to be unused.