It shows their only Nokia Lumia at the time and then supposed future products. If you take a closer look; you’ll see there’s a tiny device, like a portable media player (probably running Tango), a larger device (probably an entry level touch device), a portrait QWERTY device (maybe something like the Asha 303?), the current devices, then the interesting part a device that looks as if it’s button-less and a tablet.
It will definitely help Nokia gain traction as they’ll cover aspects other WP OEMs haven’t covered yet AND it gives users a wider choice. Guess all we can do is wait and see what happens…