Quid pro quo
So the US government gave out a patent (a 20-year monopoly) on this "invention." However, in my humble opinion (which is my own, not my firm's or clients', and formed after only brief review), what was disclosed by the "inventor" in the '462 patent was simply putting a processor in a headset but not in a docking station, so that the docking station only functioned when the headset was plugged into it.
The patent is quite short, and it appears that the inventor didn't have to solve any technical challenges - he simply came up with a marketing concept. The actual technical problems were left to the actual engineers, like the ones at Motorola.
And yet in return for this brief disclosure, he (or, even worse, Intellectual Ventures) gets to extract money from every company that uses a processor-less docking station with a phone.