With the existing menu options when you boot into PxE the third option is the “Full Inventory Registration” option (which you all already know).
However, I would like to request that the option would also find and store the wireless MAC address from wireless nodes like laptops and netbooks. Otherwise, I would either have to go into the FOG host options of a given host and either type in the wireless MAC manually, or click the checkmark. I have about 650 netbooks, and going through each would be incredibly time consuming.
From what I can see, the full inventory registration just stores the current MAC address that the node is using, which is always the LAN ethernet.