There's no way it would fit. The 12" keyboard is the same size as the 15 and 17" keyboards, believe it or not. I can measure them up if you really want, but there's really no point; subjectively, I 'd say the current keyboards are at least 25% larger in square cms, especially because of the height (as opposed to width).beachycove, you might be able to help settle a question for me. I've thought of the keyboard from a 12" PB or iBook as a transplant for the notoriously wonky Duo kb. Would you be able to measure the one from the PB and see if it will fit (give or take some plastic trimming) into the Duo?
I realise there'll be a lot more to it than simply jamming it in there, but this would at least settle the space feasibility.
A photo (or scan) of the two side by side would be awesome, as would exact dimensions for the PB kb. (metric if possible)
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Rev. F Duo keyboards are not bad. Really.