MacMinute reader Gary Allen pointed out that Apple and BuyMusic are involved in somewhat of a “billboard duel” over their music stores: “Apple has the largest billboard on the west coast (108′ tall, 198′ wide), on the side of 10-story storage building in Hollywood, showing the iTunes Music Store guitar. In response, has just put up what is claimed to be ‘the world’s largest billboard’ (150′ tall, 60′ wide) in Times Square showing their music store spokesperson, Tommy Lee. Apple has been using the Hollywood building location since 1999 to promote its products.” If you have a photo of either billboard, please send it our way.