PHPThrowdown
The PHPThrowdown has opened for registration. PHPThrowdown is a competition to see who can create the best application in 24 hours. Lots of people can write good apps if you give them long enough, but a true PHP champion can do it under pressure.
I am one of the judges for the competition. It will be interesting to see what is submitted. Also, I will be donating a few copies of my book Pro PHP-GTK to the top finishers in one of the categories.