Regarding that "business within a business" statement there is...

Regarding that "business within a business" statement there is more than one project associated with GTG.
This is a very nice move on the part of GTG, these offshoots of GTG will most likely be profitable in themselves but they also serve the purpose of "legitimising" GTG as a real company in the eyes of the world and will be particually benificial in the unlikely event of a legal challenge upon the patents.
For instance it would not look good if GTG were considered to be sitting back and just using the Patents as a cash cow, but if it can be proven that the patents are a legitimate intergral part of a larger business plan a Court would be less likely to destroy those businesses by overturning the patent.
So these additional business interests serve more than one purpose, does that make any sense to anyone?

My thoughts only, do your own research.