Plenty of problems. Apps never look quite right, because there are too many different resolutions, and maybe or maybe not have this or that button. With enginee

Plenty of problems. Apps never look quite right, because there are too many different resolutions, and maybe or maybe not have this or that button. With engineering resources split over so many products and conpanies, you don't get the best designers and the best hardware people working together on the same device. With all these "enhancements" from the OEMs, upgrading the foundation is more expensive to port and takes longer.