progmesh - highpoly2lowpoly converter

ProgMesh is an application for simplification of 3D objects represented as polygon meshes. It can reduce the objects size without visible loss in quality, optimizing render and edition times.

Supporting the 3DS format, all the texture and material properties are kept in any level of definition or resolution desired.

specially cool for game-engine freaks, unfortunately only win ported

if your in windows you can use nvidia’s tool: melody to generate low poly meshes and normal maps

I find it VERY annoying that progmesh doesn’t have any screenshots, you have to install an activex plugin to possibly see what kind of results they are talking about
[they aren’t the first company I have seen do that]