It seems fairly obvious that the ontario lineup posted and atom lineup extend into different market segments. They overlap in the middle where high-end Atom and low-end Ontario meet. But mostly it looks like AMD is targeting these first chips to fill the gulf between Atom and CULV that Intel has left open. It should be a nice boost to all those disgustingly slow netbooks and tablets.

If AMD is working on a sub 1W design, it clearly isn't in this lineup. It might not be ready, need a new process, or whatever. But if I was AMD I wouldn't be to eager to enter that sector of the market anyway because ARM is going to eat x86 alive.