Spirit like this just shows how special hacker news is when compared to other forums. (Don't need the drives just wanted to say what you are doing is nice.)
Not signing up either, just wanted to leave a tip of the hat to the memory of Robert A. Heinlein, a great propounder of the "Pay It Forward" idea (cf. http://www.heinleinsociety.org/ ). Philip K. Dick, a much different writer, had personal reasons to appreciate him.
Incidentally, Heinlein wrote up some good hacks in his books - including the waterbed (I seem to remember it could not be patented later when they came around to making them).
