nds colors - so small, so great. nearly SFW

Found some old to recent doodles on my nintendo ds. Man I love the Colors app, but the screens is just a wee bit too small... If I could get exactly this app, stylus and pressure sensibility but on a iPad sized screen, I would buy three of them.

Anyone know of such a product? Any tablet PC solutions that works for artists?

Anyhoo... these are all mindless brainfarts most of which has started as random lines. Trying to be painterly. When I grow up I'll be a fine artist doing huge dark chiaroscuro oils with nekkid ladies. Not sure what motifs I'll do though.. :))