2% ???!!!
ummm.. ok, we all know the PS3 is a pretty capable piece of hardware, but 2%? That'd be like running a NES game....
Also, for the record, Naughty Dog DID say they were only using 30% of the PS3's power for Uncharted (http://arstechnica.com/journals/thumbs.ars/2007/10/30/getting-technical-with-naughty-dog-co-president-christophe-balestra) so yeah, it probably could have been done on the 360.
Not trying to be a fanboy. Of course, it's hard when you own the best console eve... dang it