Watch out. At some point, they may just preload all the javascript for you and shove the whole page at you. No real difference, as the javascript does all the requesting rather than the HTML*, but now served from the same server, so a bit slower if that's possible.
*If you also block the javascript from loading remote resources, they can implement a proxy system so all javascript requests are sent through the server from which the page was retrieved and sent on. A bit of overhead for the small pages, but child's play for Google. And given their current use of javascript, they will probably not have too much trouble breaking things if you don't have javascript enabled.
Biting the hand that feeds IT
