If Canada plays well, he's likely not going to get a chance to have a stellar game. Look at Ryan Miller against the Swiss so far. They had one maybe C+ grade chance in the first period despite that USA playing pretty poorly.
Not just Luongo today...I noticed a few other players had trouble handling the puck. Duncan Keith for example....
They all must have some nerves and the communication issues. The ice probably won't be great either for the whole tournament because of the amount of games being played on it in a short period of time.
Back in November (after Luongo was injured) I made a bet with a friend of mine... told him Luongo would start game 1 of the olympics for Canada, and he would not only get the win but also a shutout. He gave me 100-1 odds on this happening... in pushups. (100 pushups for me, or 10,000 for him, all done in one day). Needless to say I'm bombarding his facebook with trash talk right now!