Still combing the draft, and still need to play with tap.js - but if I h...

...ave understood correctly so far, I offer these edits to make the ideas a bit more concise and palatable to a non-expert who might want to understand.

I wish I could get at this more today but alas MozMoz duties must be met. 

Big important thing: There need to be citations and evidence when there are claims of slowness. Let's get some numbers in here?