Has anybody tried out the "How are your sites connected?" demo? It connected several 'twitter' sites hosted on app-engine. Such as:<p><a href="http://liuhui0803.appspot.com/" rel="nofollow">http://liuhui0803.appspot.com/</a>
<a href="http://jasonfose.appspot.com/" rel="nofollow">http://jasonfose.appspot.com/</a>
<a href="http://jay98888.appspot.com/" rel="nofollow">http://jay98888.appspot.com/</a>
I really like the idea, but tested the API once, and back then it only returned something like 30% of my twitter followers. Not that useful if the data is that incomplete.