Don't buy a PDA now, save your money for 2 yrs later when the technology is better and PDAs might be cheaper. The only board review PDA programs that I ever saw was Kaplan had one that I never bothered to download, and I think that there are others out there made by people just trying to make a quick buck. A good book to carry around if you go traveling or something for board review (which is really not something you should be doing right now) is Buzzwords for the boards. If you have too much money on your hands, spend it on some nice books for right now.