As I've said previously, the Web 2.0 Expo show features a lot of products for developers. But there are still cool new Web apps to find--especially at the Launch Pad, a rapid-fire demo session featuring six relatively new companies. It's kind of like a mini-Demo.
Acquia sells a commercialized version of Drupal, the open-source content management (and Webware 100 winner). If you buy the open-to-commercial model, as executed by RedHat (Linux), and Trixbox (Asterisk), this business makes a lot of sense. I'm glad to see the platform get some business attention.