All of them were the right choice for their time though. Especially early iPhone and its skeuomorphic design taught (practically) the whole world how to use a t

All of them were the right choice for their time though. Especially early iPhone and its skeuomorphic design taught (practically) the whole world how to use a touch interface with buttons, lists etc. and it looked great for the time. Similar for old Macs too. Then flat design, IMO, cleaned up the general UI after teaching it.