This very useful secret keyboard shortcut was originally tweeted by Joar Wingfors, but I'm linking Michael Tsai's post here as it also includes an example of the content that gets copied. Note: Even though this is pretty well hidden, you can see the menu option change if you open the edit menu, and then start to press the Shift, Ctrl and Alt keys.
There's nothing specific for iOS developers in this font, but the ligatures certainly make it something out of the ordinary. I love the idea, but it did feel a little strange while testing it as some of the ligatures are quite visually different from the original characters used to create them. I'm giving it a try as my default for a while though!