B/c of size and price constraints, the camera in the ipod 4 is much inferior to that of the iphone 3GS or iphone 4. Here is a better HDR app for iphone 3GS and iphone 4 users: App info is currently processing and/or the app is not yet fully available for sale on the US App Store.
are all camera apps also available and useable with the ipod camera then (natively) this would be cool, since I already planed to buy cameraPro