Edit: seems this URL did not make it; spam filter
I first noticed this in the Mercedes SLS Electric Drive video. And now it seems to be sort-of a new standard in EV's. I would really like to see Tesla adding this to the (2014) Model S. How it operates could be any kind of system, preferably user-configurable. I'd go for the Audi/VW mode, just on the left paddle. And have the right paddle be some other function that I can configure.
Even driving a 6-speed semi-automatic ICE (aged car), I already use the left paddle to downshift, and slow down.
Would you like this? What other uses could you see, now and in the future for the paddles?