Found this and i can see it becoming a common trend on PS3 IMO
The full article can be found on MTV here
MTV's report on the Sony event reveals that PS3's Genji: Day of the Blade will use the PS3's internal hard drive to help with load times. Selecting an option to "install" some components from the Blu-ray disk to the hard drive will decrease load times from 15 seconds to 4 seconds.
The full article can be found on MTV here