You can work around the memory bandwidth issues alot of ways though, so the CPU+GPU on 1 chip is probably here to stay.
I'm assuming that the hybrid Crossfire will use the memory on the discrete chip instead of the main system memory. At that point, if anyone is looking for a Llano system that can also be used for gaming, they can just pair it with a low-end or mid-range card with a sizable amount of GDDR5. Those who aren't can forgo the discrete GPU and still get decent graphics.