Just a little tip re screen protectors...
I have used a product called Plexus:
http://www.mypilotstore.com/mypilotstore/sep/1150?qryrmv=1&ppcs=google&ppcg=4-25&keyword=plexas&gclid=CL6YmrLisJ0CFR4HagodRTKwj A
Originally developed for airplane pleiglass, I came across it in the morocycling realm... cleaning hemet visors and all.
Well this stuff is brilliant for cleaning those plastic/rubber screen protectors. Doesn't take out scratches, mind you. But if you've already got a protector on there, it seems to clean them up nice, removes the oily finger and facr prints and leaves a film that seems to resist (for a while) future prints. Also makes it feel real slick, which it nice for those touch/swipe actions. I swear my screen is more responcive for a few days after a wipe down with this stuff.
Obbiously I wouldn't recommend spraying directly onto the device. I spray it into a microfiber cloth then wipe down my screen priotector. Sort of like putting a nice wax finish on a car.
And no, I don't have any affiliation with Plexus... just really like the product.