I know it's cheap and all but the keyboard is hardly anything I would recommend for typing anything for more than 5 minutes. It's probably among the worst things out there to type on.
When I was googling the PocketCHIP I was surprised to find some random forum posts warning people NOT to peel the clear plastic coating off the keys, as apparently they hold them in place! That's certainly something I can imagine doing.
Oh yes, definitely heed that advice. I almost ripped mine off before I realized what it's there for. A very unfortunate omission on their part - there should be a warning in screaming caps on the device, or at least somewhere in the packaging.