It wouldn't surprise me if they did, but then again Google lets you use that data for free via their app, including download portions for offline use (although the TOS does say they can send you ads). I could see that going either way (they pay vs. no pay). My only thing with maps is that they are used to direct you to Superchargers, which makes them somewhat key to the experience (more so than free data for streaming music). I would assume that the S and X will pave the way here; after all the warranties on the 3's wont start expiring for a good 5 years. The cost of mobile data may be next to nothing at that point (one can dream right?).