Yes, I drive a 2005 MINI Cooper S. I absolutely loved these cars since they made the new ones. The design, size, and quickness/handling all go together to make this the most fun car I've ever driven.
I'm very interested in the Fiesta in general, but probably won't be looking to actually buy one for a few years. I do expect it to be somewhat similar to the Cooper stock vs. stock. I still prefer the interior of the new MINI to the Fiesta based only on pictures, but that's no slight against the Fiesta! I really think the Fiesta seems to be light years ahead of the other competition like the Fit, Versa, and Yaris. So hopefully Ford has a big hit on its hands here.