There are more posts and articles coming out illustrating how to work with cross-platform native aspects (OS X and iOS).
Looking at how to convert from an
NSString to a Delphi
String is examined by Chris Rolliston in ‘Converting from a Cocoa string to a Delphi string.’ Chris is also sharing some general Mac tips for Delphi programmers in ‘A few Mac tips.’
There are more articles out there and more will be forthcoming. I’ll post more links as I find interesting write-ups.