A 1k executable that procedurally generates its content, and calculates everything on-the-fly right on the GPU using Shader Model 4.0 and GLSL.

You can download the executable here:
beskrajnost.com/infect-me-with-your-kiss/infect-me-with-your-kiss.zip

Should work fine on both ATI and nVidia, as long as the card supports SM 4.0.