Not sure this would be much of a problem with consumers. How many people know about open source reverse engineered implementations of file sharing protocols?
It might even be a plus. Samba is a successful project, perhaps they can milk some of that goodwill from the subconsciouses of those who do know.
Good stuff. Not really anything new from the YC philosophy of business, but nice to hear it from someone in the trenches. BTW- welcome back BioGeek!