Great Start!

Great work but some additional ideas:

1. Show full file path
2. Report should spit out CSV instead of wierd text file (with file paths)
3. Copy paste rows into Numbers or Excel
4. Select rows, right click, export images to new folder. <-- This would have saved me hours of work since my graphic artist wants a folder of all of the images that need @2x.
5. BugFix: After removing a file, the tabbar changes back to "All" when it should stay on "Unused"
6. Partial file search. I have some false positives due to the how the code will brand the app. Maybe there would be a way to add a filter to ignore certain files so they are not flagged as being not used.

Thanks!

AppRater2 about Slender