This is what everyone that has anything to do with product design need to be very very aware of. The wrath of a single user is an awesome thing. The post below shows that Apple isn’t as untouchable on user experience as is made out.
Binary Bonsai » Archive » OS X Ate My Files!
It is funny to see though, that inspite of all the vehemence – there is the belief that this is an uncommon occurence. Michael, this happens ALL the time.