I have an HP 6515, Sony Clie UX50, Treo 650, Dell Axim X5, Sony Clie PEG-TJ27, Palm M515 and a Casio BE300. Can't seem to part with any of them. It takes forever to clean these every week.
I know i'll be using the mooncloth for my smartphone, the digital camera, the plasma screen on my desktop both at home and at work, and my brother's laptop to avoid all traces of it having been used without his permission :S Yup, looking for a partner in crime...:P
My wife and I both have 8125s. I would also use it on our monitors and TVs. We also have Gameboys and a portable DVD player that would be wonderfully cleaned by this cloth!