Possible, yes... Currently one that is built no...
There are things like Forum Runner and Tapatalk that allow users and moderators to use the site post, upload and moderate that works on iPhone and Android and works for many of the main forum platforms... But (I may be wrong) I think you mean more exclusive and more for the actual admin of the site?
What would your feature list be? what would you/wouldn't you want it to do?
If I know this I may be able to give you more details...