There was a time when mobile caterers rolled up to a spot and wailed on the horn to bring out the customers, now they tweet their whereabouts and let the cash box fill up. Wired has compiled a few of the more notable "Tweetcarts" like the original @kogibbq. I love to see businesses use technology in new ways to rack up sales... now if only these mobile businesses would start using community-based digital signage :)
