You know, we've made plenty of jokes about the DMB mobile TV functionality found in seemingly every GPS unit released in South Korea, but it looks like taxi drivers in the country take their distractions seriously -- serious enough to go to court. That issue apparently came to a head recently when one cab driver challenged a $500 fine he received for watching TV while on the job, which had apparently become a relatively common means to beat boredom during traffic jams but was banned last year by a local regulation in the city of Seoul. While the court obviously didn't go so far as to condone the practice (watching TV while driving was apparently a factor in upwards of 200 accidents in the country last year), it did rule that the regulation in Seoul wa