One of my favorite examples of this is Instapaper. The app on iOS registers itself as a handler for ihttp:// http:// links so all you have to do is stuff an "i

One of my favorite examples of this is Instapaper. The app on iOS registers itself as a handler for ihttp:// http:// links so all you have to do is stuff an "i" in front of a URL in Safari and the link opens up in the Instapaper app. Super clever.