If you're using a mobile version of a desktop/tablet application, you're going to have to relearn it anyway because of the differences in size. I don't know man

If you're using a mobile version of a desktop/tablet application, you're going to have to relearn it anyway because of the differences in size. I don't know many users who operate multiple mobile devices of the same size but different OS simultaneously (say, iphone and samsung galaxy), so I don't see why such devices should share UI designs.