I installed 10.6.5 on my 10v, and then installed the facetime.dmg. It worked for the first couple of minutes, but then froze on me. I force quit the facetime program, and since then I've never gotten it to work. It would give me "facetime failed". But I just tried it a few minutes ago and made a successful connection from my iPhone 4 to my 10V! Weird. The only difference is I left up the program on my 10V for about 15 minutes. I initiated the call from my 10V to my iPhone 4, and for whatever reason, it connected. I tried to connect to the 10v from my iPhone 4, and the iPhone said "Is busy at this time". But now, my 10v is in an endless loop on trying to connect to my iPhone. I'll keep messing around with it. If I can duplicate this again, I'll report back with what I find.