You're completely missing the point.
2.5 inches. It's the first time we've heard anything close to this large. So here's an image of a 2.5-inch "slightly rectangular" screen showing an Apple-like interface on a wrist.
And here's an idea of what Apple could do with an iOS-like interface if it had 2.5 inches to work with.
That's it.
I'm not really sure why people are getting so upset by it. I think it is pretty obvious y'all are not trying to say "this is what the device will look like." More like pointing out what someone thinks could be done with a device this "large." No where does it say this guy is trying to say "here is the actual device."