Both are actually valid points. I think if MK2 came to M$'s attention they would object, not because of the use of the Windows logo, but because of the use of an outdated Windows logo on a flat key.
Because I *like* Cherry or at least approve of their products, (there is a huge difference - I think Volkswagens are great cars, especially the ones from the mid-80's, but at least as of when I sold my last one, VWoA was populated by combusting anuses) I'd feel obligated to contact them regarding the use of their logo.
That didn't keep me from buying several of the Moogle kits (I'm anxiously awaiting them BTW,) but on the flip side, I'd gladly replace that goofy key with "Super," "Meta" or just a blank.