OK, now it sounds like I'm trying to sell these. I have no affiliation with Pelican whatsoever. I just know that over 20+ years in the entertainment industry I see more Pelican cases than almost all other brands combined. There has to be a reason.
Anyway, on to what this particular one will be. The Pelican 1075 HardBack Case is 11.38″ x 8.19″ x 1.63″ (28.9 x 20.8 x 4.1 cm) and has a watertight seal. Which means should you have happened to bring your tablet (or netbook, whatever) while hiking near a waterfall, it could fall in and tumble all the way to the bottom, and as long as you can find it again it shouldn't have any issues working. Seriously. (A small disclaimer: I totally made that up while I was typing...do not actually try this.) It also features an automatic purge valve which will make sure all dust and water stay out, while at the same time balancing air pressure within the case. Think the cargo compartment of an airplane.
As with all Pelican cases, it comes with a lifetime guarantee. The interior features their standard Pick N Pluck foam, so you really could use this for any number of things. It also comes with a removable shoulder strap for easy carrying. The easy-open latch is only easy to open if you mean to do it...it will stay closed no matter how hard your case gets tossed around. It also has an integrated easel for viewing in either a horizontal or vertical position.
Here's the bad part...you get what you pay for. I can't even tell you how much this will be, you have to contact Pelican for a quote. But trust me, it'll be worth it. Thousands of stagehands can't possibly all be wrong.