Hey there. Just finished a small, minimalistic serverlist that also lists pyspades-powered servers (newest revision only though, so servers running from the current win32 build won't be listed as being pyspades).

Link: http://mp2.dk/aos/

If you want to contribute to the site, patches are appreciated: http://code.google.com/p/pyspades/source/browse/#hg%2Fsite

On another note, http://iammorthor.com/aos/ can now list pyspades servers too (ditto with Spadille soon).
Hurray!