tl;dr: code to remove everyjs.com' dependencies on jQuery/Sproutcore. 24,624 deletions comes entirely from the removal of jQuery and Sproutcore. The resulting code/html is only mildly smaller.
There are a few vocal people that want everyjs.com to load in a reasonable amount of time in a desktop browser, as well as on their mobile phone arguing against proponents saying that this will not be an issue as sproutcore evolves.
Currently, in the latest chrome on OS X 10.6.7, the site takes a whole second to render and then doesn't even show me any libraries - apparently the json that defines the libraries is empty. I'm leaning towards thinking not using sproutcore for this particular site is a good idea, although it is a great illustration of one of sproutcore's pain points (namely, speed, compression and mobile support).
Can't wait until sproutcore 2.0 is closer to a release candidiate.