[buran77]

For several comments you made the point that the idea of inertial scrolling (dragging something and letting it "slide") was not obvious:

> I'm speaking of the inertial scrolling [...] That physics combination with drag and drop interaction was not obvious

Now you pivoted to the point that the implementation is what makes it not obvious:

> You have to think of and implement the idea.

Despite the tone of disapproval you just landed in agreement with what I said in the very first comment:

> The "what" is obvious [...] The technical "how" of the implementation is not really obvious

Will it be a novel invention to implement the inertial scrolling of a map using an exceptionally overly-complicated and completely impractical method that nobody has used before? No. Will the idea of inertial scrolling be obvious despite my completely non-obvious implementation? Very much so.