Can you install both Xcode 3 and Xcode 4 preview 6?

Question

Is it possible to have both Xcode 3 and Xcode 4 on the same OS instance? Is it possible to write production code in Xcode 4 and then compile it for app store in Xcode 3 ? (From practical point of view)

Answer 1

You can install XCode into any folder, you don't have to use the default. Mark is right, don't upgrade the Unix package. I make a Beta folder and install the betas into that folder.