Yup, it's not just Apple that does this sort of thing, I've seen planty of other totally vague patents being granted over the years. Either the people at the patents office are completely out of date with current tech, or they're just seriously stupid, I'm goin with both! The entire patent system needs a complete overhaul, because it should be just unique, complex ideas that should be granted patents, not a random idea someone's had. The length patents last is another thing that needs changing, as many last for far, far too long.
I remember some time ago, Sony was sued due to their implementation of the rumble feature in their dual shock controllers. a company called Immersion held a similarily vague patent regarding force-feedback. Completely stupid, but not quite as stupid as this patent by Apple, because at least immersion invented something, Apple have invented bugger all here! Didn't Apple also patent the shape of the iPhone (i.e. a rectangle with a screen filling on face)?