An NDA is the life blood of ANY corporation who has ANY kind of IP, period. Do you really think it is unreasonable to have someone sign an NDA when they ask you "I'd like to review your patent information regarding the intellectual property you have"?
No one is ever FORCED to sign an NDA, but if you do not, don't expect to get detailed information on any IP related material for free.
Then again, given your signature, you probably believe everyone should spend $60K on a CS degree to write free software for others
