Last year around this time Nigella Lawson's recipe for clementine cake ( http://nigella.com/recipes/recipe.asp... ) was a hot topic on this board. At the time, it was suggested that it could also be made with Meyer lemons, but I don't remember if anyone tried it and reported back.
So I made one using Meyer lemons (my Mom has more than she knows what to do with on her bush) for my Hanukkah dinner party tonight (it's originally a Jewish recipe that can be made for Passover since it has no flour) and it was a big hit. As Nigella suggested, I increased the sugar slightly and made a lemon juice/powdered sugar glaze to pour over top, and it was delicious -- very moist and lemony. All my guests had seconds!