So what happens if you're at a machine that isn't on your sync list?
Example: I visit a friend's house and want to log in to Gmail.
I've installed 1Password for my father so he can just click-and-go without having to remember different passwords, but I didn't really test it enough to decide if I should install it. Apologies if it's a noob question.
You open a free dropbox account and store the agile keychain in there.
That way you can access your passwords via dropbox web interface and access your passwords in 1password through the web interface build in to the keychain.
So as long as you have internet access you can access any of your passwords.