-- William Gibson, All Tomorrow's Parties
While I haven't been big into backpacks in well over a decade, B@@Q -- errr, I mean, BOOQ's PostSleeve S90 is a pretty nice looking little bag.
The other sleeve the review mentions, the Vyper M2, is pretty hardcore. And if those rumors about the 12" MacBook are true, and y'know, after I've waited for the RevBs to come out, I would be pretty tempted to pick one up.
That said, I am still super happy with my Waterfield Cargo, which is the second piece of kit I've bought from them in a few years (the other was a 12" sleeve; when my 12" work PowerBook stayed at work and I left, I had to get a bigger bag for the newly released MacBooks. It's a crime, I know). Their service is also way awesome.