Why stop at the browser? I'd love to see a unified ID that persists who I am from when I log on to the computer, check my email, go to HN, and then play some o

Why stop at the browser? I'd love to see a unified ID that persists who I am from when I log on to the computer, check my email, go to HN, and then play some online games. All of this is technically possible, but it's like herding cats.