Well, I don't know what this startup is calling his innovation because I didn't tested its system, but what I understand for landmark based is something like:
+Go straight until you see a school at your right.
+Then turn right(left on India).
+Continue until you see a big fountain.
Is that innovation? I don't know in USA but in Spain and a big part of the world that is the normal way of telling someone how to go to a place, is not so strange that another human being has the same idea than you about doing with a computer what you do without it.
That is the main problem about software patents, people want to have a monopoly over ideas a lot of people spontaneously have.
The notion of landmark-based direction is not innovative. Using publicly available data sources to cover India in algorithmically discoverable landmarks so that you can give them from two arbitrary points in the nation, that is innovative. (And hard.)
I couldn't even begin to describe a cost-effective way for an Internet startup to discover that my apartment is the second one on the right after you take the left at the statue of Buddah.
+Go straight until you see a school at your right.
+Then turn right(left on India).
+Continue until you see a big fountain.
Is that innovation? I don't know in USA but in Spain and a big part of the world that is the normal way of telling someone how to go to a place, is not so strange that another human being has the same idea than you about doing with a computer what you do without it.
That is the main problem about software patents, people want to have a monopoly over ideas a lot of people spontaneously have.