Summary: They have taken out the on line play feature. There are now no roster updates. The new version is pretty much Madden NFL 10 lite. Madden NFL 11 has less features. If you still have your copy of Madden NFL 10 keep it, and do not waste your money on Madden NFL 11. It is a total waste of money and time. They should have discontinued the PSP version instead of putting out a very poor and inferior product. The have also have put out the same poor product for PS2.
Summary: I've enjoyed previous version of Madden on the PSP, but this one is complete garbage. None of the changes made this year to the console versions are in the PSP version. Worse yet, online play and roster updates have been completely removed. The game itself feels choppier to me, which I could understand if the graphics were improved, but they're not. The game still freezes occasionally, as it has in every edition of Madden on PSP.