Darius,
Whatever you say. But it doesn't change the quite common opinion that TT navigation software runs rings about most other efforts, with the exception of certain special cases where some of the others have an advantage. And TT has been working well on cell phones for quite a while (in fact a little too good, they're moved most of the effort there to the disadvantage of PDA users). And I still don't believe that ..developing 3D generation navigation systems isn't .. complicated. (Edit: For a moment there I thought you meant 3D, as in 3 dimensional view as in TT and others, I assume you meant 3rd generation. My comment still holds I think.) If it were true, everybody would be doing it. And they aren't. I've seen so many high-prized, big, good-looking, but badly working navigation systems. From the built-in, $3500 systems of cars to Hertz Neverlost (more known as Everlost): They are not good. There are very few good navigation systems on the market, at least when you look outside some single specific attribute.