Humm… Looks like it will suffer from the same problem that the psp has in that you need to play it somewhere darkish and the screen has to be held at a steeper angle to see the screen. plus that piano black shows fingerprints up like crazy.
I would prefer the sliding screen of the PSP Go – much easier to play on for prolonged periods of time. Also the positioning of the square/triangle/etc buttons looks a bit poor, as they can’t bring the 2nd joystick inboard enough like the bigger PS controllers – in fact thinking about it, it’s going to be a pita to use the sticks, see the screen and hold the NGP securely, as you need the flatter angle to see the screen but more angled to use the joysticks. They’ll need to make pads for your little fingers as you’ll definitly have to use them to stop the whole thing sliding out of your hands.
I do like the fact it’s not download only though.