I have a Wells Fargo card with a PIN. But, it's a SECONDARY form of authentication. The PRIMARY form of authentication is still a signature, unless the card is used at an unattended terminal.
In practice, it didn't work for me in Europe. When I tried to use the card at an unattended terminal, the transaction failed -- just like a different card that had no PIN. Fortunately, the terminal (a gas pump) accepted cash.
According to http://www.spotterswiki.com/emv/car...rity=no_preference&type[]=credit&type[]=debit Wells Fargo seems to only support encrypted PIN and not plaintext PIN. I'm betting that's why the pump didn't like the card, even though they're supposed to support both.