According to this new post on Christian Spanning's blog, there's been an updated version of MAMP released.

MAMP (Macintosh, Apache, Mysql and PHP) is an excelent environment if you’re planning to do some PHP development on your Mac. As they state on the MAMP website, it should therefore not be used as Live Webserver for the Internet.

He listsrest of the list on his post, or just head right over and download it now...