Haha, I thought about going too. Edward Sharpe is supposed to be fun, and I love Hey Rosetta! quite a bit too.
If you haven't heard any Hey Rosetta! before, I recommend you checking them out.
I've seen Mumford before, and they are rumoured to be headlining Roo this year, so I don't really care to see them twice this summer, but the rest of the mini-fest should be fun.
Is there actual camping at the fest? I just assumed there was, but didn't check.