There were a couple of booths that got my attention because of the number of people stacked up around them. NisisUSA was one of them:
They were selling a single product directly from the booth, as well as from their Web site. It was a 4-megapixel digital camera/AVI video camera (VGA resolution)/MP3 player-recorder/portable hard disk. The price was $199.
It comes with 16 MB memory and accepts Secure Digital memory cards. The use of Secure Digital cards seems to be universal -- Secure Digital has become the de facto standard, with nearly every camera, MP3 player, etc., accepting it.
For more information, visit the NisisUSA Web site.