Nissan announced a few updates for the 2009 GT-R, updates that include 5 more hp from the 3.8-litre twin turbo V6 "VR38" engine. The 2009 model year will be called Series II Nissan GT-R R35 and will be first launched in Japan.
The GT-R Blog is also reporting other changes to the car, but they are mostly minor. The white body color is changed from paint code QX1 to QAB (Storm White); Brembo brake calipers are rebadged to Nissan; front license plate is base removed (U.S. already has it); and the gas tank is size expanded from 71 liters to 73.8 liters (about .75 gallons).
All this does come at a premium. There is a five percent price increase.