*Updated for Unity 3.5*
cubeGen is a cubemapping tool that will generate cubemaps in both the Free and Pro versions of Unity based on the point you define. This is revolutionary since the Free version of Unity cannot generate cubemaps out of the box. This system also benefits Pro users as well as you can direct control over the cubemaps this system will generate. Not only that but included is a system to swap cubemaps based on an objects location in world.
Documentation
Video Overview/Tutorial