From the article it seems that this was one remarkable and generous man, which makes the accident even more tragic.

On the technical side of things I wonder what the consequences for the Segway brand will be. It always seemed to me as if the iBot was a Good Idea (tm) which lead to a mere novelty toy for polo games. If this accident leads to accusations concerning the safety of these rides (quite probable imo, being a media cynic) this probably has the potential to hurt quite a bit.