To be honest- at this point BFL is a functioning company with R&D costs like any other. If this new revelation explains anything, I think it more likely explains why they needed to offer pre-orders: with a history of Mail Fraud it might be impossible for BFL to get outside venture capital, or even borrow money from the bank, thus the community pre-order's bankroll the next iteration of equipment.
Inaba stated that that preorders were not used to fund development and that outside investments (VC, etc) were taken.
Ah. Hmm, there goes that theory I guess! :-)