I have to agree with the others. There is no way she kept her maiden name. There would be no announcement if she followed protocol and took William's name as that would be standard operating procedure. However, the future queen of England keeping her own name would be so out of tradition, that act would be the one to necessitate an announcement. Since there was no announcement that she bucked centuries of protocol and kept her own name, one can be reasonably sure that she followed tradition and took the royal name. It really is pretty simple to deduce. But I am only a simple suburb dweller.