Mark Lord has talked about making a disk writing feature available in Hijack. As mentioned, it would operate on a few sectors in-place, and could be done while the drives are mounted r/o. The kind of features you guys are talking about are definitely good uses for this kind of thing, at least, better uses than high scores for empacman or favorite trivia categories for emptriv.

Hopefully as the weather gets colder we'll see Mark around here more, and he'll make this happen. I agree, the "thou shalt not write while in the car" thing is a bit overboard, and we should allow for at least a limited write-while-driving API in Hijack.