PureEdit is a new CMS/Framework project launched this month and aims to simplify the development of your website. The CMS is aimed more at developers and currently beta with a growing community on the forums.
PureEdit is the first CMS that dramatically simplifies the back-end development of your website while giving you full control of the front-end design and programming. By allowing such uncommon flexibility, PureEdit empowers you to design web sites from the ground up, without forcing you to follow the narrow template rules you’ll find elsewhere.
There are some screencasts on their website which shows how it works. PureEdit is written in php with support for MySQL (others coming soon). More information and download from http://www.pureedit.com/.