http://www.gsmarena.com/nokia_20082009_smartphone_roadmap_surfaces-news-670.php
The "Corolla" and "Eitri" sounds hot.
The Corolla maybe the first N-Series with half QWERTY keyboard. Perhaps the "half" means two characters occupy one button like those found on some SE phones. You push to the left or right depending on which character you want.
The Eitri maybe the first touch screen phone to offer localised tactile feedback.