Namespaces already in PHP 5.3 ?!

Apparently we will see support for namespaces already in PHP5.3, since the code from the PHP6 branch, which is responsible for their support, was copied to the PHP5 branch.

PHP Namespaces (Part 1: Basic usage & gotchas)
PHP Namespaces (Part 2: Namespace constants)

Well, let's wait for the release of PHP5.3 at the beginning of next year.