When modelling low-poly objects Maya has a major disadvantage to 3ds Max: There are no GeoSphere primitives that have a lot less faces than those Maya polygonal spheres.

This script creates those spheres extremely useful for low-poly modelling: GeoSpheres based on an octahedron which means that they can easily be mirrored.
Code is based on a c program by Rick Bono where I took the basic formulae and calculations from.

You can specify geodesic frequency and radius to get the results you want.

Usage: GeoSphere [frequency] [radius] [polytype]

More information about usage, future improvements and known issues can be found in the script itself.

Update:
The new release 0.2 supports icosahedron and tetrahedron (tetra seems not perfectly working though - but maybe you won