This has been out for a while, but in the same booth where Engadget found the Watch Your Bag crapgadget there's a giant blacklight dock that will pulse to the beat. Oh, and it has speakers. You can opt to leave the black light on if you want (no sync to music), or have it strobe. Naturally it'll work with iPods as well, so you can practically set up a nightclub in an instant. Provided you don't mind toting a 4-foot iPod dock around. At $149.99 from Sharper Image, I doubt these are flying off the shelves.