[jpap]

The Camera Roll will apparently host them, but not show them as animated.

Unless you roll your own viewer, many devs suggest using an embedded UIWebView to animate it.

Otherwise it kinda gets treated as pass-through for most of iOS. The Messages app apparently animates them nicely, and for some is a real motivation to include the feature. (So they can send animated GIFs to their friends.)

Glad you like the app! :D