M3GToolkit is a set of utilities to process M3G files (JSR 184: Mobile 3D Graphics API).
It can convert different 3d file formats (3ds, max, obj, ...) to m3g, and manage the different properties for customize the render in the mobile. Also it optimize m3g files to get smaller files and consequently faster load.
The generated m3g files can be watched at mobile with a small application included.