If you are on mobile business, its currently a duopoly, if you are not investing on both top 2 platform you are doing it wrong. I would also probably categoriz

If you are on mobile business, its currently a duopoly, if you are not investing on both top 2 platform you are doing it wrong. I would also probably categorize this in to "investor", in the sense that your business is investing on that platform, so profit margin of that platform in a relevant information for you.