according to Freshmeat their relational database, InterBase, is licensed with the Mozilla Public License - but now Borland has their own very lengthy license detailing commercial use, intellectual property, etc.
intellectual property does NOT exist - there is no such thing, it's a misnomer... even Thomas Jefferson understood that you can't own an idea, and he "owned" people. it's not truly possible to own anything, but at least it's a semi-applicable paradigm when considering physical items. land, I think, will be one of the first major physical goods to go from being "owned" to being a responsibility which if not lived up to can be revoked by ones peers - that is if our current attempt at societal consciousness works... otherwise it's back to the dark ages, and local societies will continue to operate under their own theories of ownership.