[McClain]

If it's around 4 inches that means the screen will only be 2 inches wide. That's real small, but not so small that I wouldn't be interested. I got so used to playing on a NG Pocket, this couldn't be much worse. Plus the graphics would be better.
It's all about the price. If it goes for $50 I'll snag one in a heart beat. There's no way Nintendo will try and price this thing above an SP or, god forbid, a DS.
I'd be willing to bet it's gonna' cost around $50, that way Nintendo can keep selling SP's for $75/80.
There are plenty of good GBA games available. Enough to keep me from buying a PSP and I REALLY want one of those.