Let me present issue 395, the most starred issue on the Twitter API bug tracker:<p><a href="http://code.google.com/p/twitter-api/issues/detail?id=395" rel="nofollow">http://code.google.com/p/twitter-api/issues/detail?id=395</a><p>Also fun: if I have an iPhone client app interacting with Twitter and also with a web service that in turn interacts with Twitter, how does OAuth fit into that scheme? Do I make the user do the OAuth dance for the iPhone app? My web site? Both?