MX 900
CrackedButter - Do a search in the Forums on on Bluetooth Mouse, and you'll pick up a long thread that discusses the MX900. Seems that it works basically, but that the extra buttons do not work (although they may work in Expose, but since I'm still using 10.2.8, not really sure what that means). Unfortunately, the Logitech mouse driver does not work, I guess because the connection is through BlueTooth and not USB.