Yesterday, for my birthday, one of my wonderful co-workers got me a g/f Kick*ss Cupcake. Chocolate with vanilla icing.
It was really tasty. The cake was light and not overwhelmingly sweet, which was ended up being the perfect balance to the frosting, which was very rich and sweet.
Kick *ss sells g/f cupcakes every day of the week, so head over to Davis Square any time for a delicious treat. Call ahead if you are looking for a particular flavor to see if they have it on hand. They have four gluten-free flavors (chocolate, vanilla, lucky and mojito), but only bake one or two on a given day.