Lets be fair, they have been working on it since RTW so must have quite alot of work done, but I think July 1st is a bit hopeful of Amazon really.

Backend of August - December is the most likely scope of release for the game, we don't know where they are remember, they may well be balancing and tweaking now, they may be placing important features in, we just don't know and quite rightly so, its none of our business how far they are, only what they intend to do.

If it comes out on July 1st I'd be HEAVILY surprised.