I am currently doing the same that copying all the source into the new project.
Except those fixes mentioned or not mentioned, it works fine in XCode for most of the part. Affected area will be GUI if you are using CocoStudio, Array and Dictionary, Camera. NotificationCenter related should also pay attention. If your code is not heavy involved with these stuff, copy and paste should be no problem.
And it seems not quite support with calling python build script inside Eclipse (the CDT properties seems removed), and it is not quite workable for some parts under Windows (still checking). The other is fine.
Also there are some questions in this forum which you should pay attention to. Keep checking here to make sure you didn’t miss something important.