An aspect of this I feel hasn't been addressed is that in this case, the product of the commercial activity is information (in the form of a map), which has a r

An aspect of this I feel hasn't been addressed is that in this case, the product of the commercial activity is information (in the form of a map), which has a reproduction cost tending to zero. This will of course make it difficult to sell profitably (the fact that in most cases the information costs energy to produce, is beside the point). To those who would argure that this is unfair competition, I would ask whether they would feel the same about an encyclopaedia company suing wikipedia, or the publisher of "Blurb for dummies" suing the guy who put a Blurb tutorial on his website. I would contend that there is no viable market here in the first place. The example of Google maps proves my point, Google having to make money selling ads, instead of the information itself.