Here’s a vim function which vsplits on the file in the current buffer… except, the split contains the copy installed in the iOS simulator.
I use it when I need to guess-and-check on screen layouts and such. Just be sure to copy the contents back into your project.
function! VSplitInSimulator() execute "bel vsplit " . escape(findfile(expand("%:t"), "/Users/jason/Library/Application\\ Support/iPhone\\ Simulator/**1/Applications/**"), ' \') endfunction
Use like so:
(or create a command)