Interesting and good to have a name for this thing. This seems to happen all the time in tech as engineers and ideas bounce between big companies. Some example

Interesting and good to have a name for this thing. This seems to happen all the time in tech as engineers and ideas bounce between big companies. Some examples that come to mind: * Stories from Snapchat to Instagram, back to Snapchat with replies * App switching UIs iOS -> Android -> iOS with gestures * Home UI Facebook -> Twitter -> Facebook (current beta)