[ef4]

Please, somebody figure out how to get us over the hump to the bright future day when we all have asymmetric keys embedded in hardware and we can leave passwords behind.

[zdw]

Please, somebody figure out that when you embed asymmetric keys in things, when people lose those things they'll get really angry

or

Please, somebody figure out that when you embed asymmetric keys in people's bodies, we'll end up with a lot of geeks with their hands hacked off with machetes.

[kleim]

"Hacker" would have a really different meaning then...

[andos]

Tada!

http://en.wikipedia.org/wiki/Security_token

Guess what? Even worse usability.

[stcredzero]

I suspect the usability problems could be solved.

[Jhonbxl]

Will/Should never happen. Human != device, and it's the human we want to identify to personnalize the service.