That slinky 13.3-inch Sony Vaio S is getting itself something of a refresh. Not much is changing about the sub-four-pound notebook -- you're looking at the same 4GB of RAM and superb battery life, even on the base models. The folks at Sony are simply giving the line something of a brain transplant, swapping in Intel's latest Core processors (that's Sandy Bridge for those of you in the dark). You'll still have your choice of i3s, i5s and i7s, but now they'll run a little bit faster and a little bit longer. The slightly refreshed models will land on October 2 and no change in p
