On the surface, whilst lacking entirely of grace, it is a cordial and diplomatic statement of intent, but it is impossible for the reader to fail to notice the subtle belligerence of its tone and the fact that it is quite a petulant attempt at blackmail.
Without beads to offer the chiefs in Berlin and Brussels Europe has nothing to gain from a petulant little Britain which wants the best of both worlds. Cameron clearly needs Europe more than Europe needs him.
What can you get the man who has everything? Having everything has always been their number one problem. Eventually everything gets boring; it loses its lustre, and new pleasures have to be sought to keep them amused.