Bold Prediction: Modnation Racer will be the best seller new IP this year.

[*Sound Of Rain]

If you count the P.S.P sales and the P.S.3 sales together then maybe. If you are only going to count the P.S.3 sales then no. Many other games may do better such as:

Alan Wake
Natal Games
Heavy Rain
Move Games
Vitality Sensor Games
FlingSmash