@ the OP, if specks of dust drive you nuts, I would rethink your plan of using those flip cover cases as they may end up causing damage to your screen with little specks of dust and dirt rubbing right against the screen at all times.
I have 2 coworkers that have used those exact cases and a few weeks later they noticed fine, hairline scratched and marks right on the actual screen. Needless to say they were sad pandas.