Seriously? They didn't have the phone he wanted so he let them sell him something else entirely?
I'm guessing a Windows phone developer would own a windows pc and not a Mac as you say he is known to "rant about apple". Since you need a Mac to develop/publish for iOS would he really buy an iPhone, learn obj-c and buy a Mac just because the store he visited didn't stock Windows phones?
Anyway just dual boot you're desktop its really straight forward these days.
I recently rekitted my workstation to a i5. To install lion was literally as easy as boot off a USB drive, insert the install lion USB drive, let it do its thing, grab the associated drivers and put them onto your desktop, run the MultiBeast tool. Bingo running OSX.