Saw Skyfall over the weekend and was just wondering what's written on the side and bottom of Q's cup?
I didn't watch Skyfall, but some of googling gives me this picture which says its Q10.
Its part of Wild and Wolf's Scrabble mug collection.
Each ceramic mug features one Scrabble letter on the front and the official Scrabble letter distribution chart on the back.(Source)
Here is images for the back of cup you are talking about
And here its detailed look
It is a Scrabble mug. The opposite face is the letter distribution (the number of tiles per letter in the classic Scrabble set). The bottom is the Scrabble logo.
They are available for purchase here