Strat, you are speaking of the spin flip experiment; the properties change instantly, but FTL travel is not possible because we would always be interested in transporting things with mass . The problem is that mass increases as its speed nears c, the speed of light. As it gets closer and closer, its mass gets incredibly large and quickly and increasingly so (on both counts).
Ah, but some of you guys are talking about bending or folding space to connect two spatial points. We don't even know what "space" is in its ultimate or basic nature, or if it even has any "handles" we can grab do such things. When some physicists say that highly massive objects can "warp" or "curve" space, it's another way of expressing that such objects have also a correspondingly humongous gravity, pulling things towards it along paths describable by known mathematical equations. Whether space surrounding the large object is "warped" or the smaller object is attracted to it according to Newtonian (or other models) descriptions of gravity, the observed effects are the same- six of one, half dozen of the other; they are different ways of saying the same exact thing.
Consider this effect: two giant scissor blades are closing toward each other at the speed of light. But for such motions, the rate at which the gap closes is always faster than that of each of the blades. So then, the gap closes at a rate faster than the speed of light! BUT: 1) this is merely an illusion and 2) even if it weren't it's an observation; i.e., information, or data! There is no known way in science and technology we can even dream of making (large) material move even close to the speed of light.
(But this does not mean we can't enjoy Star Trek, Star Wars, the SFC series, etc.)