Your "shared language of touch screen interactions" is and will forever be unrealized as endless 'innovations' 'novelties' of creative developers and companies remain unfettered by any requirements for compliance voluntart or otherwise to UI 'standards'. Software developers are focused on myriad depths and constraints of toolkits and frameworks languages and libraries to get network, cloud, and actual functionality right, and immersed in those worlds, burden users with their own vast congitive prejudice that their application is the only one in the world, figuring 'users' have unlimited time to decipher undocumented UIs effectively gamified and unique across hundreds of spplications by not only gestures but by required and precise cadences to correctly effect those gestures, cadences which are overloaded and confounded by network and device delays and zero haptic or audio or visual feedback on what may have been 'commanded' or what is yet to be acomplished and displayed onscreen.
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