The "release candidate" for Deer Park Alpha 2 is out. One of the most visible improvements is the enabling of the Fastback feature, which allows much faster page forwarding and backwarding like that in Opera. That's really exciting!
P.S. Please uninstall Alpha 1 before installing this build. I found that it seems to be ignoring the Alpha 1 that I previously installed, hence, extra shortcuts and extra uninstallation entry. :-(