I would love to see those scenarios. Since Romney appears to be doing worse in Michigan and Pennsylvania than Ohio, I cannot see him taking either of those two and losing Ohio. The same holds true for Colorado, Nevada, and (probably) Iowa. What state(s) can he get the eleven electoral votes needed to get 270?
If you give the traditional blue states to O and the traditional red state to R you see that R could lose OH and but win CO and WI and still win
CO and WI look to be Romney pick ups. I have written off NH and I split ME and NE based on Congressional districts. You come up with a Romney win even if he loses Ohio
You can create your own map here
CO, NV, WI, NH, MI or PA.
There is also a split vote in Maine, where he could get one EV.
CO + NV + Maine = 16.
Nov. is still a long way off and currently Zero is getting a bounce (more so from the media than from actual data).