Heyo, i'm Josh over at WoB, and I don't normally get involved in these blogs for bags.
However, I really really wanted to try this pack out.
"Boblbee"
makes some incredible bags. These are the most rugged laptop bags i've seen on the market. They're futuristic looking, in fact you may have seen them in episodes of star trek, or movies like Charlie's Angels. The entire rear compartment is a Hard exterior shell, ABS Plastic. Its basically the safest thing i've ever put a laptop in.
I Took a bunch of pictures, there's so much to show. The back of the bag is the most impressive piece of ergonomics i've ever encountered. Its cushioned, comfy, and perfectly designed to perfectly distribute the pack's load for long trips.
The interior has a separate padded compartment for your laptop, and more pockets than you can shake a stick at! 
On top of which, it expands outwards giving more room for books or whatever.
Its very comfy, and fits snugly, has a front clip that keeps it in place, and a removable cell phone pocket on the strap. As if that wasn't enough, the hood has a little neoprene water resistant pocket for your MP3 Player, that sports a handy hole for your headphones.
If I have any negative comments its that the bag is a tad bit small, but of course there are several models that are larger, and this is the slimmed down city version. A must have if you want to protect an investment as valuable as a laptop!