Porting iOS to Mac, recreate GUI, UMEKIT or Chamelon?

I'm currently porting a project from iOS to Mac. I wrote big parts of the code in C++ so I only need to get a new UI (and get back the mouse!)

But, since our product manager said the application should look the same on both platforms (It's mainly a viewer for drawings). I figured porting should be worth a try. I wanted to know if anyone used UMEKIT or Chamelon open source project for开发者_开发技巧 this porting and can share insights...

Any guideline howto's use them or is it a big no no?

I assume you don't want to have your app listed here.

For every new platform you release an application, recreate the user interface completely, from scratch. People, especially Mac users want consistency between applications, so it's best to do it the Mac-way. Also see the Human Interface Guidelines for Mac OS X.

I mean, this is awful:

^{_{Does your product manager use a Mac?}}