iButtons?

[jakob]

Hey folks,
Been doing some research on iButtons, and am planning to buy some goodies in the next 
couple of days. Anyone messed with these yet? I'd like to potentially use them for PGP 
and SSH-related tasks. Basically they're little chips in a durable stainless steel can 
about the size of a watch battery, they're capable of storing various amounts of data 
on them. linux drivers exist to mount them as an fs.

interested in hearing about any experiences or hacking of them! :)

www.ibutton.com