I'm so glad to see movement in this direction. I work on a team with lots of non-technical people who need to share passwords and secure information, and store their own private bits. So we use LastPass. It's the only thing that works for us, but man does it need some competition. It makes me sad several times a month.
I would love to be able to move away from their central repository and host our own solution with something like this. I just hope that any user testing is being done with some non-techies who don't know or care what a PGP key is.