The Open Stargate Network is a free fault tolerant open source networked teleportation system for the online game Second Life.
The code and reference implementation are FREE. If you paid for them you got ripped off.
Second Life® and SL™ are a trademarks of Linden Research, Inc., and they have lots of funny rules that require this piece of text appear at the beginning of this document.
And while we're thinking about it, we should also mention that The Open Stargate Network is a non profit project developed by fans of the Stargate Universe & Franchise, of which all Major Rights, Trademarks and Intellectual Properties belong to MGM, Sony Entertainment and their associated respective rights holders.