10 Impressive Rails Apps Built in 48 Hours or Less

10 Impressive Rails Apps Built in 48 Hours or Less - Mashable: "It’s hard to pick from such a comprehensive list, but here are my thoughts on ten applications to watch out of all 137. Take a look at these, then go see the rest of the 137 and place your own vote while the voting is still open. You could influence the “next big thing” in Web 2.0."