KDE is basically a different desktop environment that can be run via the stock tablet OS. There are also threads about Fedora Core 8 and Debian OS options that are operational, however they are in very early "experimental" stages at this point. If you're a linux beginner, then it's probably not something you'll want to touch. The real question is "what are you after?" A different look/feel/navigation? Different/specific applications? Experimenting/tinkering?