The Seventh Harry Potter Book to be Released 07/07/2007?

This is hardly official but you have to admit that this speculation makes a good argument that the book will be released on July 7th next year:

It just so happens that July 7, 2007 is a Saturday. It just so happens that every Potter book since Goblet of Fire has been released on a Saturday (presumably to allow kids and their parents to attend those midnight release parties without undue hardship). It just so happens that July 7 falls right in the traditional June-July release window during which the other books were released. (Finally, while less relevant but still interesting, 12:00 a.m. on Saturday will be 7 p.m. Friday in the U.S., where the most Potter books have been sold to date. Fans on the east coast, already lined up to buy their copies, will see book 7 released across the pond at 7 p.m. local time - what a coincidence.)

Rowling has hinted at the significance of the number 7, most recently in August when her official site's Wizard of the Month was an arithmancer who discovered the number's magical properties. In Half-Blood Prince, it was revealed that Lord Voldemort had made seven horcruxes (himself included). Quidditch teams have seven players each. Gryffindor Tower's entrance is on the seventh floor at Hogwarts. The list goes on and on.

I can see it now: the biggest marketing campaign in the history of publishing, with one very short, very simple, very effective message: Book 7. 07/07/07. Woe betide the marketing departments at Bloomsbury and Scholastic if they don't clinch what's obviously the most perfect storm of circumstance, desire, product and marketing the world may ever know.

The book release can't come soon enough for me.