So-called "Ion2" is probably what you want. Next year. As for specs, who knows
My ION setup (zotac IONITX-D-E) does a wonderfull enough job that I do not regret *not* waiting for a better IGP.
As for Feature Set C (... that is, DivX, Xvid, mainly), dual core Atom reads hi def content very well, thank you.
There's always something better on the horizon. You just have to cut the line somewhere and buy.