One of the things I noticed about the process of learning to recognize characters is that seeing them in a font which I am not used to can completely throw me. This is especially true of the flowery fonts which are used in advertising.
I was thinking it would be cool and very useful if Skritter could show us examples of a character in several different fonts side by side. In mark-up that would obviously depend on the user having those fonts installed, but it occurs to me that you could generate an image file of a table showing a handful of different fonts and then cache it. That way it would only be stressful on the server the first time any character was requested.