title: How to refresh a UIWebView by a "pull down and release" gesture?
body: <p>I know that this is possible in the Tweetie for iPhone or the xkcd iPhone app, but they are using a table. Any idea if this can be done for a simple <code>UIWebView</code> as well? I'm aware of the Javascript suggestions in <a href="https://stackoverflow.com/questions/1604795/scrolloffset-in-uiwebview">this SO question</a>, but what about making that natively?</p>