Another tech example: WebTV to internet is only on computers to "App Enabled" blue ray players / GoogleTV(and others).
Some tech comes out, slowly is found to have limitations, is replaced by another tech that is completely radical in it's approach, eventually it has limitations too, is replaced by a reimagining of the first tech with some parts of the 2nd tech... it's a standard cycle alright.
Another (non-tech) example: Father is a taskmaster, strict, and prudish. Son is rebellious and becomes loose, overindulging, and 'free spirited'. Grandson reacts to Dad's overindulgence and lack of structure with a desire to "do better for my son", becomes strict and prudish... rinse, wash, repeat. It's not a "forgone conclusion" that things will go this way, but if you look, it seems the norm that a person will react to their parents' behaviors and do the opposite.
You'll also find our culture swings like this too... the puritan years of ~ 1890 - 1900, the "roaring 20's", the "good old days" of the 40s and 50s, the 60s (enough said), though in each swing, the overall move is to less prudish it seems, and the swings appear to be less of a violent black/white swing.
I guess the pendulum swing is just a part of human nature, but perhaps there is an equilibrium that can be reached that is best for all...