According to Reuters, not only is Nokia not abandoning Symbian as its smartphone platform of choice, but the Finnish mobile giant plans only one (1!) Linux-based device for the entire next year.
Nokia refused to officially confirm this information, which comes from a "source with direct knowledge of Nokia's product roadmap," saying that they "remain firmly committed to Symbian as our smartphone platform of choice."
Personally, I'm not sure whether this is good or bad news. I've had the chance to try out the only Maemo-based device currently on offer, the Nokia N900, and it left me disappointed. Not in the terms of what it can do, mind you, as it's packing some powerful hardware; but the UI and the touchscreen responsiveness if you try to use your fingers (there's a stylus included, too) need to undergo a lot of improving to be anywhere near the iPhone-levels of usability and fluidity.