Back up of applications games.Does it exist yet?

[anon(5680040)]

Has any developer allowed the system to back up the data of his application yet?
If there is any application or game I will add it to the list.
Unfortunately my list is empty.

 

[anon(8657436)]

I have seen it work with Halfbrick games (Jetpack Joyride). Don't know of any others though.