We learned that Art Lebedev was planning a new, smaller and "cheaper" addition to the Optimus keyboard lineup with the "Popularis" a while back—but the mockup was basic to say the least. While no new information has been released, we do have a brand new, detailed, 3D mockup to drool over. [LiveJournal]
@Monty: I imagine it's because it's too expensive and it would probably just be one of those things that people talk about but never buy. A cool keyboard's gotta offer more than being a cool keyboard for the average user, but then the average user would not even need it.