[UPDATE] - Sony has confirmed that Metal Gear Solid: Peace Walker will be announced as the next game to get the update treatment at E3!
Sony is bringing the PSP's biggest games to the big screen with a touch of HD remastering and DualShock control. Starting with Monster Hunter Portable 3 (from Capcom) so this isn't just a Sony title effort, the games are PSP save-compatible and will help milk the PSP cash cow for a good while longer.
The full story with video is over here: http://www.andriasang.com/e/blog/2011/05/22/psp_remaster_series/
Expect the Metal Gear, Final Fantasy and other big series to make the transition. So, now the PSP/PS3 worlds are combined and you can expect a similar trick for NGP.