A suggestion for a possible feature, somewhere down the line.
Would it be possible to have a Skritter Cross-Trainer mode for moving betwen simplified and traditional characters, or vice versa? So the way it might work is this.
Skritter gives you the simplified form, e.g.
这
You have to write the traditional form
這
Or, once again, vice versa. I imagine that this would work best by simply focusing on characters rather than on words. There would be some problems with multiple traditional forms (e.g. 麵 / 面) being represented by single simplified forms (面) and so on. But this might be handy as a relatively simple quick-and-dirty way of rapidly increasingly fluency in moving between simplified and traditional forms.