XCode is flexible...even does the splits!

The XCode development environment is Apple's slick IDE (Integrated Development Environment) which is used to write Apple Applications (MACOS + iPhone).

The main project window has 3 main areas:

• West: Groups & Files
• North East: File Names
• South East: Edit Views

If you look closely in the views area you'll see an itsy-bitsy icon near the right scroll bar. Float over it. It says: "click to split the editor view". When you click this icon the edit view turns into 2 panels with the same content. You can then click on either edit view followed by clicking on a file and voi-la you'll have two separate files viewable at the same time.

I find this helpful when looking at Objective-C header and implementation files.