WWTT??? - Shake to Undo??? Part 1

The iPhone, and along it - iOS - it's operating system, were a breakthrough in many ways, possibly (in retrospect) launching a whole new industry(?)

In it's rush to pave new roads, certain features were left out, including such features that were standard, such as Undo.

Needing to squeeze so many features, with so little time, and so little space, some features simply couldn't find their space.