Startup Weekend failed, but lessons learned
startupweekend.com
startupweekend.com
I really loved the part where the heroic manager talks the Rails programmers out of embarking on an entertaining game of competitive hacking in order to keep the entire, gigantic 70-person team focused on... waiting around. Imagine the consequences if he had failed!
That would bring a bunch of people together without violating the "small startup" principle. Also, completion between the teams would help with motivation.
But it does sound like fun though. A barcamp should take the idea to the illogical extreme and hold a startup-hour session. :)
/Nuff
Now we'll never know whether rails would have helped