I couldn't help but feeling my last version of isotope was a bit crippled. So here's isotope2 for your fiddling pleasure. It's backwards compatible with old patterns, features zoom, better loop detection, infinite play (shift click the play button) and most important of all ten times the values for rotation speed.
I did a minor update fixing a spelling error and also added a larger range for the speed/accuracy meter. Reload the page to get the new version.
Loads of patterns are already in the comments for the old isotope.
PS. 13'000 visitors and counting. I love you all.