I think you missed my point - more users does equal more data, but there's no incentive for Android users to instal land use Apple Maps if they already have Goo

I think you missed my point - more users does equal more data, but there's no incentive for Android users to instal land use Apple Maps if they already have Google Maps on their phone. It'd get so few users that it would be a waste of time. The introduction of iPod (and iPhone/iPad) compatibility to Windows is different because at the time, the iPod was by far the best MP3 player - this just made it usable to more people.