Last Friday, a hundred or so technology and internet locals filled up the offices of ThisNext.com in Santa Monica for a little lunch and lots of conversation and networking. It's called Lunch 2.0, a phenomenon that began serendipitously in Google's lunchroom. In short, this is how the free meal with geeks got started: Guy gets fired from Google, makes big headlines, invited to Google's lunchroom to eat with a friend, fired guy brings a......