However it does appear to be anticipated by prior art mentioned elsewhere on the comments here. Given that, I'm surprised the patent wasn't challenged: that suggests it either wasn't useful to others or that the USA court system prevents lawful challenges to anticipated patents somehow (eg by burdening appellants - appealing against the grant - with costs).
I haven't read the patent yet, but how specific is it? Because while it is one thing for the description to convey the general idea so that a skilled practitioner can make something similar, there's a big fat question of ambiguity - did I actually make the thing this patent describes or not? What exactly is the thing that's covered?
See, for example:
http://www.let.rug.nl/usa/presidents/thomas-jefferson/letter...
Jefferson was clearly dead set against the situation you are describing -- granting patents with only incidental modifications to the system. But then again he would be rolling in his grave if he saw (and had the modern knowledge to understand) the completely inane, obvious (to practitioners of the art) shit we've been granting patents on since about the late 1980s.
Using a simplistic example based on your child comment, a sentence in the specification might state "The phone may be black, or gold, or any other suitable color." (In reality, the specific color is not likely to be addressed at all unless it plays a role in the claimed invention.)
My point is that too specific can also be a drawback.
If you concede that patents in general are good, then you should also agree that sometimes, it's better for a patent to be general.
> The Supreme Court has said that patents should only be granted for “those inventions which would not be disclosed or devised but for the inducement of a patent.” In other words, if the inventor isn’t trading information of real value for the patent, then it’s not a good patent. Unfortunately, many software patents do just the opposite. They offer no real information about how to implement a feature, only a vaguely worded description of the feature itself. In court, vagueness is often rewarded over specificity, as plaintiffs stretch the boundaries of their inventions to cover the defendants’ products.