Remember sporks? Remember how they were really popular for like 7 hours after they were invented? What happened to them?
They sucked, that's what happened.
Everyone knows how to use a spoon, and everyone knows how to use a fork. They are perfect at completing their tasks; so perfect, in fact, that it is totally worth the effort of having one of each utensil to accomplish their respective goals. Combining them into a genetically-altered hybrid-species simply to save oneself from carryingtwo utensils instead of one is not worth the frustration of dealing with the fact that a spork can't really do anything except poke the tip of your tongue when you're eating peas.
Ever heard of the Flip camcorder? It's this ingenious product that is about as simple to operate as an iPod, but it's a camcorder. It's the size of an iPod, too, and has a built-in rechargeable battery, and it holds and hour or two of video. That's it.
But that's the amazing part: That's it. No features, no menus, nothing to distract you from what's really important. (Oh, and it's in 720p HD, which makes your Youtube videos look fantastic.)
Everything you need; nothing you don't. Just like spoons and forks. Sometimes, it's what something doesn't do that makes it awesome.
And sometimes, it's what a person doesn't do that makes her good at what she does.