HERE's big "trick" is their accurate gradient data. If you're driving big heavy trucks around, and want to take advantage of routing around steep hills to save

HERE's big "trick" is their accurate gradient data. If you're driving big heavy trucks around, and want to take advantage of routing around steep hills to save in fuel costs, HERE are your best choice by far. (Or at least, they were 4-5 years back, anyway...) They also have some interesting indoor location/mapping stuff I've read about but not used in anger, which seems to be quite promising too. The ability to map and locate phones in multi story buildings including getting each floor right with individual floorplans is not a trivial thing to get right. Their docs, at least, make it seem like they know how to solve that for you.