Yes, I think it’s time. As of today, don’t call it a cell phone anymore.
Hell, just look at the difference in the pictues pulled up via the two links above. One has supermodels on it (mobile), and the other has lame cartoons (cell).
supermodels > lame cartoons
Plus, the Europeans are already calling it a mobile phone, and everyone knows cool people want to be more like the Europeans.
Anyway, point made — it’s a mobile phone, not a cell phone (if you want to be modern).