For those who like the newest in development tools, Apple has surely delivered with the Snow Leopard operating system upgrade.
Apple has compiled PHP 5.3, including many of the extensions they forgot in the PHP 5.2.x version included with Leopard. This includes GD, and the MySQL Native Driver (mysqlnd) that is available in PHP 5.3. They’ve also compiled Subversion 1.6.2, and Apache 2 is included as well (2.2.11).
It does not appear that MySQL is included with Snow Leopard, though. PHP also does not have a configuration file, resulting in a warning being emitted by PHP about the timezone not being set. These are relatively easy problems to correct, though I have not tested the full MAMP stack for compatibility with products such as WordPress or web2project.
Here’s a copy of the Apple ./configure line for PHP: