This is really interesting- A friend of mine and I have just submitted an app to Apple last friday which allows you to view your twitter streams / twitter searches / etc but only shows tweets with photos. It's looking at the links in the tweets for media, and not the media entities themselves, so it looks like our app will still function correctly (just now tested)! We started making this app before the api 1.1 debacle so I'm interested to see how it'll play out.