I’ve been working on this API off and on for a while now.
I have a Google Code repository where it is hosted.
I’ve put the code at https://nikepluscsharp.googlecode.com/svn/trunk
The unit tests are working quite the way I would like them to. I mentioned this in a post I did last year and never put any real projects up.
The (so far) very blank project pages are located at:
http://code.google.com/p/nikepluscsharp/
Any problems you see with the code, please let me know.