[OpenID] OpenID support on Firefox 3

[John]

What does the built-in OpenID functionality of Firefox 3 look like?

I would expect a red button that allows you to log on to any site with a 
single click (which would turn green then), together with a drop-down 
button (similar to that on the Back and Next buttons) that would allow 
me to log on to the site I'm looking at with a different OpenID account 
than my default account or the account I used previously to log on to 
that site.

Is the functionality anything like what I describe above? Is it better? 
Worse?