I was thinking it might be interesting to be able to write a whole character and then click a button when you're done to have Skritter mark you all at once. This would be quite a good way to keep oneself honest when entering the character, and would mean you could spot cases where you'd put in too many strokes if Skritter didn't stop you when the right number had been entered.
Thought I'd put this out there in case your to-do list was getting to thin :P