I use http://www.mapmyrun.com It gets the job done but I find it a bit clunky.

It's nice to see some lightweight but no less functional alternatives.

Perhaps he can be reached via twitter: http://twitter.com/tetsuya_k

Does it reveal anything? I can't read Japanese.

Google translate: http://translate.googleusercontent.com/translate_c?hl=en&...

Vim and SlickRun (sorry Windows specific but certainly worth mentioning)

Not worth mentioning since it's not remotely answering the question.

Uh, what?

I read the first paragraph, stopped, read the wikipedia page (in particular the section Examples of busy beaver Turing machines), came back and enjoyed the article.

Ditto here. I think Peter overestimated his audience on this one.