Best Banner Ad Ever

I know I'm just falling for BMW's viral marketing ploy, but I can't help but admire the clever ad campaign they've created just for web junkies. If you like a good mystery, visit the Apple MPEG-4 page and click on the :k: link at the bottom. Just remember, like a polar bear in a snow storm, not all is as it seems. Thanks to RyanR who pointed this out on the message boards. For bonus fun try Tron20.net. (Thanks to trallyus for that one.)