I am considering purchasing either a FEH or MMH this coming fall; however, I might be inclined to wait for a couple years and go with something else depending on when the plug in models will be available. I have only read bits and pieces about the plug in technology, but know there are companies today that can convert the current FEH's, so I figure it's only a matter of time until Ford is able to offer the same thing. Does anyone know when these are supposed to be released, and approx. how much more they will cost than the current FEH's? I plan to purchase my next vehicle and keep it for as long as I can, so I would hate to purchase the current FEH, which I would plan to have for a long time, to then only have something that gets 3 times better gas mileage come out in a year to two years from now. Anyone have any info?