The Mine! Project - Capabilities for the web

I've watched the demo videos (the second video gets closest to capabilities), and it appears that The Mine! Project is going to be building capablities based security for the web, without specifically mentioning it. This will be a very nice step forward, in my humble opinion.

They want to allow someone to give a "minekey" as a proxy for a relationship. This could be considered equivalent to a capability. The minekey can be revoked at any time, which is a pretty good method of control. They don't try to solve covert channels, nor do they try to build in DRM.

Doc Searls talks about VRM as a way to counteract the mining of our data, and that approach along with the efforts of others, seems to be yielding fruit like this, and in other areas.