Picombo is a Rack-based Ruby MVC Web framework with design principles taken from the Kohana PHP Framework. It's designed to be fast, lightweight, and easy to use.
CTPP (or CT++) is a template engine that has
bindings for C++, Perl, PHP, and Python. It
features very high performance, flexible syntax
for templates, robustness, portability, and
Open Hot or Not is a free implementation of popular rating sites like HotorNot, sexyono, etc. It has support for themes and language translation.
A PHP class for generating PDF documents.
CORBA for Ruby.