I have been googling all day and I have had a few near misses. Is it possible to customize at all? Root? A guide for sideloading? I know I saw a link somewhere with apk packages to sideload onto the device. Change the screensaver is mysteriously non-compliant, I downloaded the Apple fetcher and it works in test mode (looking fabulous) but I can't set it as an option in the actual screen saver options.

I am truly sorry if I have missed anything painfully obvious.