If my cash flow was better at the moment I probably would pre-order it, because it sounds interesting.
Right now all of my available cash is being reinvested as fast as I can apply it to my business, so unless it provided me with some very real benefit early on, I will be holding off just a bit.
Of course it will also depend upon how long until it comes out. If it is not going to be out for a few months, I might indeed pre-order it by then. Any decision now, though, would be based totally on fun factor and not on usefulness factor.
Until it is actually out and being used, it would probably be hard to judge its value as a productivity tool.