The beautiful thing is that Apple's always been about "just making it work" but that wasn't hugely important on a desktop PC. We didn't mind sitting there for half an hour getting everything to work the way we wanted, or spending half an hour every month doing maintenance.
An tablet computer is different, because we literally pick it up and start doing stuff. It's a much more immediate user experience. We literally haven't got time to mess about making it work properly.
And Apple was perfectly positioned to take this into account and produce an operating system and software that "just worked".
The sad thing is that nobody else in the world could have done this. Not Microsoft. Not Google. And manufacturers STILL don't understand how important it is. iPads are still sold in adverts saying what they can do, while Samsung tablets (and phones) are sold in adverts boasting the size of their screens, or the fact they come with a stylus
All hardware concerns!
It's about the software, stupid!