Quote - > Quote - Ima, Luxrender already supports network rendering now.

Yes, I know, in Blender I set it up in the plugin GUI, just mentioned it because I don't se it in the AIR GUI, (and I know it's just for test) just in case it's been forgotten ;-)  like the light groups feature

It's something I'd like to see in the GUI

It is in the GUI, in the Luxrender GUI there is a tab Network.
The exporter doesn't need to do anything special for network rendering.

Software: OS X 10.8 - Poser Pro 2012 SR2 - Luxrender 1.0RC3 - Pose2Lux
Hardware: iMac - 3.06 GHz Core2Duo - 12 GB RAM - ATI Radeon HD 4670 - 256 MB