I thought that was a pretty good list. I have to disagree with him on the SRAM Double-Tap, which I really liked; I far preferred it to the idea of a brake lever which moved inwards. Now that I have Di2 with no swinging brake lever I'm happy with Shimano again - although I still think the chainsets are hideous.
I'd never heard that about the Cannondale power meter. I believe some car manufacturers have tried the same trick - e.g. your car comes with heated seats but you have to pay to enable them. I think all such attempts are doomed to failure, ultimately.