Totally understandable, one of the worst executed visions of all times. I think there's a really huge opportunity in this space, and the first who'll be able to figure out the perfect (and, most importantly, simplest) way to offer a single-sign-on, integrating privacy and security features, will be hugely thanked.
That particular holy grail is a poisoned chalice and it's claimed plenty of victims, anyone remember Sxip? It's not a technical problem, it's power, control and ownership. Anyone in a position to allow a platform to get serious traction isn't going to give that control up and anyone that isn't can't make a system with enough traction. Then there's issues of trust, delegation and longevity. I'd love someone to do it w…
InfoCard is surprisingly non-evil, and I also think Firefox is ideally placed to work on this (oh look, here's the solution: http://www.azarask.in/blog/post/identity-in-the-browser-fire... ), but they don't seem to care enough.