We've had the chance to try the Nokia Lumia 900 at CES. The smartphone is in some ways what it looks to be on the surface: an upsized, upgraded version of the Lumia 800. A side-by-side comparison of the Windows Phones shows that they're about as thin, but that the 900 is very clearly wider and taller. If you're not a fan of large phones, you won't be a fan.