I've often wondered about obtaining my own copy of wikipedia (and other knowledge) to put on a portable device. It would be very useful when I jump in my time machine to travel back in time. I'm going to need to know how to build things so that I can become the "winner" of history. Of course, as history would show us if we learned, when you upset the apple cart, the establishment usually eliminates the threat. So, that's the last piece I haven't worked out yet. Oh, and the time traveling bit.