Firstly lets just throw it out now that in the war between the PSP and the DS I am on the DS side ^_^, but things just got a little more interesting recently when a group of coders chewed through a loophole in the PSP’s firmware using one of it’s most popular titles Lumines. Now no downgrading is necessary and games can be homebrewed and played on PSPs right up the latest firmware version.
Homebrewing makes it possible for user programmed games to be played on game consoles.

