No one has that I'm aware of. At least not just taking the code and submitting it as-is. I've had many people email me about the code because they were trying to use it for their app.

If somebody did just re-submit it as a paid app I'd be fine with that. It is open source after all. I do think that's unfair to end-users though who probably wouldn't know it's free and it would add to the clutter of the App Store.