Utube Sues YouTube

"From The Age article: Universal Tube, which sells used machines that make tubes, has said it has lost business because customers have had trouble accessing its site." So now Utube is suing YouTube seeking a cease and desist on the youtube domain. (I wonder if they think Google's pockets might be deeper that the previous owners'.) This again raises the problems of domain names colliding across different industries and countries, and reminds me of the etoys/etoy tussle a few years back. Should domain name simply be exempt from trademark legislation in all countries or is it a legit thing to fight for?"