Since so many people are attached to their i-phones, i-pads, etc, they end up in weird places. My son's ended up in the pool when he fell in and I hear a surprising amount of men talking in the bathroom on them. So it's about time someone invented not only a waterproof cover for them but one that has an antimicrobial coating.
But the market for those who obsess about germs on keyboards, phones, remotes, etc is even bigger. This company even makes dishwasher-safe keyboards.
I can just picture my wife washing our keyboards when these become more common. She hates it when our boys bring their laptops into the bathroom: