#FlashPlayer had #Stage3D for a graphics API and #Alchemy to do cross-compilation. Adobe decided that you couldn't use both unless you paid up. They added #DRM to Flash to enforce this: #SWF files could not use both APIs unless they had an #Adobe cert in them identifying which revshare was being paid.

This was years after #SteveJobs wrote his famous open letter, BTW. Flash was STILL GOING STRONG despite not being on iPhone! And using Flash as a delivery mechanism for 3D games was a growth play.