Yes, that's right. Isn't there at least one other state that assigns Electors by proportional representation? IOW, if McCain won 45% of the popular vote in that state, then he'd have 45% of the Electors from that same state.
That is MUCH different than what is being suggested here.
I don't know of one, but I think other states have discussed it. And, what is almost the same argument, is the question of winner-take-all or allocated delegates to the Republican and Dim conventions. I think a state or two does divide their convention delegates based on the number of votes primary candidates receive.
And, really, maybe those advocating this harebrained scheme would also like to have all convention delegates assigned to the primary candidate who won the most popular votes nationally. Same thing. There is some weighting in the number of delegates a state gets.