Although rails camp isn't structured in a way to encourage people to complete projects. The opportunity is there, but it is also an opportunity to chill out with friends or get blind drunk of you are that way inclined, so different feel to a hackathon where everyone is feverishly working away on something.
This doesn't stop lots of people getting some really cool stuff done. Everyone who has completed something cool presents on the Sunday evening and it's awesome.
Generally it's a really well balanced mix of hacking, gaming, socialising and optionally drinking.
