P: Quick delete

Would be nice to have "Quick delete" option in gallery/view mode on iPad/mobile.
After shooting several hundreds of photos it is essential that user can easly and quickly review (full screen) and delete all bad shots with one tap/gesture. Same important is to have option to add with one tap tag or rating to the picture (currently full screen). 
So, there is just need for simple (overlayed) toolbar on full screen preview with options: delete, tag, rate