Who knows, maybe Nokia thinks of smartphone market as an experiment, a hiccup, a toy for the geek. Maybe they don't see this as the future of mobility. Maybe they think the market will always be 90% composed of dumb, keypad-and-red-green button phones like it was 10 years ago. In which case, I'd make like the rat and flee the ship.
...the future is mobile. In the first quarter of 2010, the global smartphone market grew by 56.7%. In a downturned global economy. And that was twice the growth of standard mobile phones in the same period. That’s not happening anymore for deskbound devices. Gartner says that by 2013, “mobile phones will overtake PCs as the most common Web access device worldwide.”