If I were apple I would be more concerned about protecting brand name so I-pad doesn't become the new 'band-aid' or 'kleenex' you lose a lot when you lose your trademark to a brand when it becomes so common as to become public domain. I think public domain is the word for things like this. Xerox had a problem with it when people would 'xerox' a document independent of what brand of copy machine but seems to not be the case now. When you search for anything you 'google' it. lots of examples and its a fine line between market. generic word for petroleum jelly is just 'vasoline' dominance and losing your brand name rights. The issue is when a generic can start using your trademark as its product description. I'm not sure how many products had gone this far.

Pawn Shop Clerk: [Hands the Terminator a tablet] These are brand new; we just got them in. That's a good tablet. Just touch the button, the beam comes on and you put the red dot where you want the image to go. You can't miss. Anything else? The Terminator: Phased plasma tablet in the 4 watt range.

in one game (mmo) I played you had a quest to release 4 prisoners from this evil guy, there were 5 prison cells though. Its one of those quest you would repeat every 3 days or so when it came off cooldown. Everytime I would release that last prisoner even though it had no actual purpose in completing the quest. It made me ponder about empathy. I asked if anyone else does this and got a mixed response of answers. Some did, some didn't. *note: numbers might be a little off but story is true