Since I know you're an Oasis 2 owner, and I just got one: Did you find it was almost necessary to have a case with the Oasis? I like mine a lot, but man it is so slippery it's constantly slipping out of my hands. I don't think I could keep this device without a case. Also, I have a form of neuropathy, and the bottom corner of the Oasis digs into the heel of my palm and after a long reading session, the hand goes numb if I don't constantly switch hands or positions.

I'm hoping a case can solve both problems: make it a little more grippy, and take the bite off the corners/edges to help with the neuropathy.