LeftParen

This seems to be an interesting new framework which uses some libraries from PLaneT.

According to the website

Features

Automatic creation of the basic directory structure of your project
A "Hello, World" with zero lines of code
Simple data persistance storage through the "record" abstraction
No databases or schemas
Session and cookie support
User accounts and authentication out-of-the-box
Easy form creation
Simple URL mappings (like Rails' routes)

Documentation is sort of lacking and I am currently figuring it out.
The website for the framework is at http://blog.leftparen.com/