Honestly, this was the BEST game on iOS and am seriously sad to see it no longer supported. Like jalc, I would love to take a gander at making this buildable and publishable and testable on iOS again. I've been developing software for 30+ years, have a few iOS games myself and would like to take a shot at helping you return this icon to iOS. I'll even cover your annual developer fees if that's a problem.
Just bought the -R version (I didn't even know it existed and am so excited!). Were you ever planning on porting this to iOS also if you had the opportunity? I'm sure you'd be featured. Let me know if you need some help.