When in XCode on a MacBook Pro, doing a 3-finger swipe up will switch between the .h and .m files.

⌘-option-up will do the same thing

Productivity++

Through my travels through the internets, I have stumbled upon this amazing reference.  It’s a complete set of XCode shortcut commands.  Learning some of these commands has drastically improved my efficiency when developing in XCode.
As a big fan of not using the mouse (yes I’m and Emacs guy), this is invaluable.  Download the full size [...]