It's important to make a few things clear: We're working really hard, together with Apple, to make this conversion. Apple staff are on site at Adobe every day and have been for quite some time, helping our teams make the required move to the Xcode development environment & taking our feedback on how to make Xcode support large projects like Photoshop.
Everyone--Mac users, Adobe, and Apple--wants to get Adobe apps running natively on Mactel as soon as possible, but doing so while maintaining their quality will take time. If we knew how to do this more quickly, we would do it.