iOS updates come for free as well and they offer all the features to at least the last 2 versions of the phone, covering basically two years of product releases

iOS updates come for free as well and they offer all the features to at least the last 2 versions of the phone, covering basically two years of product releases. > there are hundreds of different devices that already exist that have to be updated That's exactly the problem. Also the problem is that those manufactures don't really care of those hundreds of devices, maybe they care of the latest 2 (two months product releases the most), because most likely they will have to push a brand new device the week after.