Adner, it's definitely the automatic kickdown - when you push the throttle to the floor, it'll downshift because it assumes you want to accelerate There are a lot of automatic transmissions these days that do that, in fact you can read more about it in the Wikipedia if you'd like Just scroll down (or click on) section 6.
I think if I had the option for a dual-clutch "automatic manual" like in current, higher end sports cars that I'd be for it. Having driven automatics all my life until the car right before the Mini, though, I really like having a manual - even in DC traffic
Only time I hate it is when I'm stuck on like 267 headed west during rush hour
[edit] I should add that I have nothing against people's choices of what they drive - after all, you're driving it for you to have fun