Wooohoo was right, here's the book the 10th book by Meg Cabot of Princess Diaries series
Princess Diaries, Volume X: Forever Princess (Princess Diaries) (Hardcover) This title will be released on January 6, 2009. Looks like I know what you I'm ordering them 😉
I read on www.megcabot.com that she said that after this book comes out she's not sure if she'll have another Princess Diaries book because she thinks Mia needs a break. WOOHOo awesome to hear and I added it to my ever growing amazon queue.
EDIT: Just so you know, I'll read my flist/comment on entries soon and I'll update today has just been well complicated. I'm off to read and get ready for bed, I'm exhausted as hell.