PyMaemo has now two new modules: Cython and Storm. The first one is a fork of Pyrex, to generate code mixing Python and C data types. The second is an Object Relational Mapper. Both are available for OS2007 and OS2008 (Chinook Beta).
To install Cython you have to use apt-get install python2.5-cython, because it's targeted to developers. Storm is available through Application Manager. Hope you enjoy it!