Symbol recognition without textual aids

I am very curious to know when the day will come when app design will not rely on textual aid for application symbols. We all recognize that the green light on a traffic light means go. New symbols come into web design everyday, I would like to know how long it will take for a symbol to be recognized by the user without textual aid. . Here are some of the symbols that have become instantly recognizable to me. 

Random design

I am just surfing through Pinterest looking up app designs. Here is a nice and simple design I have found, I really like the colors 

S.E.O

I am adding this link to another blog for Search Engine optimization.
Creative Multimedia Programming

Handy Flash tutorial

This was a great tutorial in Flash that I found on YouTube. While it isn't useful at this moment in time, I know it will be soon. YouTube It describes the ActionScript that enables the user to use keyboard arrows to move an object.

Flash timeline layout

Here is the timeline for my flash project, Not set in stone yet but i think it is the best way to get it working.