Grimes on 02 November 2009
PSP-3000 sold 140k in its first four days. DSi sold 170k first two days.
I expect the PSP Go to have worse legs than either of those systems.
Anyone can guess. It takes no effort to throw out lots of predictions and have some of them be correct. You are not and wiser or better for having your guesses be right. Even a blind man can hit the bullseye.
