This site was just launched, and I got an email from a friend who is connected to the site owners. Sounds like it might have some appeal to us early adopters: Beta Marker. I'm thinking -- del.icio.for early adopters:
"Beta Marker is about software you like. You'll discover the newest software releases here, all submitted by Beta Marker members. If you like a software, mark it to promote it to the home page. Submit, comment, mark and share your activity with friends."