The following pictures courtesy of Gamepro are some excellent comparison shots between the fat PSP and the new slim-line PSP. Can you guess what they are? If you can't be bothered to guess, the differences are as follows - the new back is shiny and not matte, the system is 19% slimmer, the thinner battery results in 33% less weight, a more streamline design but still it smudges like crazy, oh and here's a good one - the slim box actually shows the old PSP on the front!