Isn't Nokia Pure the font? and not the theme? The theme that they showed on conversations.nokia.com is just to show how the font will look in the _possible_ future Symbian UI... The icons are already coming to Symbian PR2.0 (I believe) it's just a matter of someone extracting those icons and putting them on Maemo.. the font too..

But those aren't out yet, I believe they will be put on Symbian via an update.

EDIT: I have an N8-00 so I will be following this, and when the update hits my Symbian device, I will extract those icons + font and post them somewhere.