Will and Kate warmed up to each other in Ibiza this September. Photo by: SOLARPIX
A Perfect Match| Prince William
But what about what his grandmum the Queen wants? Actually, waiting this long may have been her idea. Palace observers say that after the short courtships of Prince Charles and Diana and Prince Andrew and Sarah Ferguson both produced disastrous marriages, the Queen is happy with a sort of waiting period. "She wants young royals and their girlfriends to be together for five years," says Jobson. "She wants them to be sure the relationship is going to continue." Will's leisurely romance with Kate "is the opposite of Charles and Diana," says royals author Robert Lacey, "when the family pressure and common wisdom was that it had to be done quickly."

To be sure, the royal family is acting like the engagement is a mere formality, embracing Kate in a very public way. "The Queen's idea is to have these girlfriends in the fold as much as you can," says Seward. "She likes them to get used to the regimented life of a royal." It has helped that Kate has held up so well under the scrutiny that comes with dating a prince. "She seems completely at ease with the whole Palace machinery," says Seward. "They are clearly treating her with a great deal of respect."

So just how cozy is Kate with the prince? Their body language says it all. See how she strode confidently into the royal viewing box for the Cheltenham Gold Cup horse race in Gloucestershire this March. Notice how, as one spectator put it, when the prince "saw her he had a big smile on his face." Not Prince Will, mind you – he wasn't even there. We're talking about his dad, Prince Charles, whose cheery welcome of Kate had royal watchers abuzz. "He likes her very much," a family friend says. "I am sure he wouldn't be averse to having Kate around."