<Snipped quote by Keyguyperson>
Roddenberry actually had nothing to do with that film, funny enough. He died just before it was released. Rumor is that when he saw a screening he was enormously unhappy with it and would have pushed for major changes if he didn't die soon afterward.
Don't know where they got the name.
Praxis. They got the name from the entire universe which the Praxis parallel dimension is.