I wonder what sort of impact losing part of a finger like that has on typing. I guess you'd probably adapt pretty quickly (I was wondering if the prosthetic was useful for things like typing, or a hinderance).
I'm sure losing any finger would affect your typing, but with practice the human body is capable of learning amazing things (like the people who learn to write fluently with their feet after losing both arms). Of course age affects this learning process too; a younger brain will more easily rewire itself. Typing doesn't require much strength. Losing your pinky finger, for example, has a huge effect on your grip strength (see Yubitsume: http://www.japanslate.com/pinky-fingers/ ).
Probably only plugs it in while copying files, so no Linux distro. Would also lose its novelty factor pretty quickly with me because my desk means I have to have my PC on the right side!