Well if it's 4.5" diagnol, then it's bigger than 4.5" horizontal, which is good news. And if you want something that fits in your pocket that you can play on the bus, then get the new GBA (the original won't fit in your pocket). But for people who travel that want PSX-quality games and want to watch movies, then the PSP is what to get. And if there's a way to convert PSX games that you already own onto minidisc and play them on the PSP.... mmmm dreaming... doubt this would happen with the copy protection. I think this PSP is going to be smaller than people expect... otherwise one of those super-mini notebook computers would match it in every way (size, play DVDs, features, game quality) and Sony's not stupid, so the PSP's going to be very portable.