They haven't advertised it much or any, I thought it is a side project, not the next biggest game.
You tend not to advertise 'till closer to your release, thought we'll be starting our PR push around PAX, when the first oficial vids will be released.
It's looking like August 2010 is a possibility though, and I'm sure the rest of the team would enjoy some extra polish time The sexier we can get the game, the more mainstream appeal it'll have (and more likely to be a big 'hit' title, and not just a 'sleeper hit').
And you'd be suprised how much small-team development feels like 'side-project' development. No big meetings about focus group feedback...we're literally making a game that WE want to play, and once the gameplay development really gets rolling you'll see beta builds released that feel different by the week.