not mainstream.
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how about desktop computing for normal americans (1970s), GUI computing ('80s), desktop publishing ('80s), USB and wifi ('90s) smartphones ('00s), tablet computing ('10s), etc... all made mainstream by apple.
largescreen androids and android notifications only exist because of iphone coming first and them cloning it.
Love what you did there. You called wireless chagrin not mainstream yet because small percentage of the market uses it but then went on to claim how Apple made GUI computing mainstream even though the percentage of Apple users was and still is insignificant. Nice one. So what is it? Did Palm or Nokia made wireless charging mainstream or we are waiting for the Apple to do it? That answer will determine if GUI was mainstreamed by Apple or Windows. Just playing with you here.
Oh and to kill your thunder Sony was doing phablet computing way five years before iPhone or any other large screen phone. And it was made out of all aluminum, it featured 4" color touchscreen and a camera. There is no such thing as revolution, only evolution.