Going back to late 2010, there was a minor controversy with an app called ImageWind. The app was removed from the Marketplace because it pulls live images from Twitter, randomly, in an uncensored way. What it meant was there was a possibility that non-family safe images would appear, thus offending some users and as it happens, violating the Marketplace rules.
In short, it was the first example of "app censoring" that Windows Phone experienced.
Now, the app has returned with version 1.2. So what's new? For one, it has Mango support, so you get some fast-app switching. You also get a "Safe Mode" option to show/hide potentially non-safe images (from our experience, you rarely see anything dirty on Twitter anyways).
It's a cool app, we suppose. Very voyeuristic. Too bad it doesn't support landscape mode, as that'd be ideal for a desktop screensaver.
You can pick up ImageWind for free in the Marketplace right here. Thanks, Kalet, for the heads up