I don't think you get to trumpet 'fits in your pocket' if it's 8 inches. I don't doubt that in principle, you could persuade one to fit in your pocket (unless you're female) but I don't think it fits most peoples definitions of that.
Sorry to disappoint you, but it absolutely does fit in my pants pockets and all of my jackets pockets.
UPDATE: Here's an image gallery that I just made showing it in the jacket I'm wearing today, in the pants I'm wearing today and again in a pair of pants that I grabbed out my laundry pile - http://imgur.com/a/hFeDo
Not only does it fit in my pockets, but there's room to spare. Maybe it won't fit in some skinny jeans, but I don't wear tight pants because I'd rather be comfortable. In any case, whether it fits in your pocket or not isn't the point - it is true that Apple doesn't offer a highly portable device that runs a full OS for over 10 hours
