You guys and dolls haven't yet figured out what the "legal issues" most likely are, have you?
Check the recent IRS rulings and FIN-Cen requirements, especially those requirements concerning Money Transmitters.
My $.02.

My understanding is that LRM isn't a money transmitter. He isn't taking fiat or exchanging it. And according to one of the last fincen papers I read, that you may be referencing, LRM falls moreso into the category of doing a service regarding investors. That's different than being a money transmitter.
Regarding the IRS. I think the main point from that is that bitcoin is considered property - not a currency.
Anyone, correct me if I'm wrong on these points. But if you do, please cite why and sources if possible.