I lined the inside with thick cotton flannel, and it's been doing a good job of cleaning the screen when the phone slides in and out. I'm not sure many people understand what the little android appliqué is about (it is the Android operating system's logo), but I don't mind because it's just adorable.
The only downside to a non rigid cover is that it doesn't actually prevent any of the side buttons from being pressed when the contents of my phone shifts around, but so far that hasn't been an issue. The one issue that I have had so far is with the phone itself. When I first got it, the battery wouldn't hold a charge for a day, even when the phone wasn't used during that period. After much googling, and the installation of apps like CPU Spy and Better Battery Stats, we figured out how to make the device go into sleep mode when it's not in use, as it should have been doing all along. (You'd think the basic functions on a gadget this fancy would work right out of the box, but sadly that wasn't so.)