revolutionary,
I honestly believe the V22 will (and probably does) fly quite nicely, and so will the 609. There is no way the folks at Bell will let it fly so poorly as to be unpleasant.
The other points will be solved, as well, like the hydraulics and complexity, so that in the end it will be expensive to run, but not unsafe, I think.
What cannot be fixed is the payload disadvantage it suffers with regard to helicopters. It will carry only half the load of an equivilent helo, no matter what magic is used, as long as that same magic is allowed to be used on the helo. In the end, customers will decide if the cost is worth the speed, but the fundamental handling will not be a determinent, I think.