Curtain is a templating system akin to TAL, together with the METAL and Zope's i18n extensions. It's compiled, based on SAX, and thought to read and produce always well-formed XML. The syntax and semantics are kept very simple, and strive to be 100% tested and documented as a development principle.
XaoS is a fast, portable, real-time, and interactive fractal zoomer. It displays the Mandelbrot set (among other escape time fractals) and allows you zoom smoothly into the fractal. Various coloring modes are provided for both the points inside and outside the selected set. In addition, switching between Julia and Mandelbrot fractal types and on-the-fly plane switching is provided.