Anyone know a good solution?
So far I have not found a better way than using File>New file and then copying contents from old file to new.
You can probably dupli
In XCode 4.2 (I know this is an old question) there is Duplicate under the File menu.
Select the file (you can select multiple files but it doesn't appear to do anything useful) in the Project Navigator and then File->Duplicate. Hooray!