How can we be so sure PS2 won't be in short supply this year though, with PSP manufacturing ramping up and eating it's production lines? I dunno, seems like it could go either way for GBA and PS2 depending on a ton of variables (price drops, competition, software schedules, supply, promotion, etc). Also worth noting that PSP seems more in competition with PS2 actually based on SCE's target audience and pricing figures, I don't think it's that fair to say it'll take from just the GBA market.