As Watson himself suggested at the time, this wasn't really a lucky guess so much as a logical deduction based on Apple's ages-old business strategy. It's rarely the first in a category, but it has a knack for refining and popularizing concepts that had trouble getting off the ground before. Witness what happened with tablets, in case you need proof. Microsoft spent 9 years trying to spark demand for Windows-based Tablet PCs, only to watch the iPad take over seemingly overnight -- in fact, the Surface line was a reaction to the hype surrounding the iPad. The Smart Keyboard may be far from original, but the only shocking thing about it is that some were shocked by it in the first place.