FoP in design is Soarin' on very powerful steroids. Unlike Soarin', you don't actually have your seat lift up into the air, but the concept of how it all works is very similar. You sitting in your "seat" and watching a giant movie that makes you feel like you're flying.
I haven't been on the brand new Mission Space, but the old one was in a confining cockpit and it actually leaned you back or in the case of Orange, spun you around. FoP does not do any of that.