The animated stroke orders got me thinking a bit - it would be nice to have an introduction to a character. This could be as simple as describing (naming them and giving their meaning) each of the radicals in turn while animating them. Learning the radicals is really the only way to learn to write Chinese and if Skritter could help me with this it would be great (yes, I could look them up but that would take a while).
For characters that have a radical form it might be an idea to display it off to the side to reinforce the concept (this would be really useful in conjunction with a word list containing words that are radical-ized).