I use Twitter, as to millions upon millions of others.
Having just finished a Skritter session, I felt the urge to force my followers to recognize my brilliance*, in the form of this Tweet: I've learned 118 new Chinese characters this week! Thanks Skritter! - http://www.skritter.com/.
Soon after pressing enter I realized that Twitter has a pretty good API for things like this. And that I'd like it if I could set an option within Skritter to Tweet every X new characters learned, X amount of time studied and/or whatever stat per week/month...
1) This would allow me to keep my stellar Twitter rep'*
2) Free and relatively simple way for you (Skritter) to market yourselves through automated word of mouth.
3) Be generally awesome.
The option would consist of three components: twitter username, twitter password, tweet frequency/stat choices. It would be off by default, as it cannot be assumed that every user likes/uses Twitter.
* = sarcasm.