Earlier quoted context omitted.
what parts of flash are not open? When flash opened those parts you mentioned? do their knowledge and control of the closed parts of flash enables them to build better tools? how big a lead did they have for their tools when they opened those parts of flash ? Are they still today the leader in flash tools so maybe it's not worthwhile for a competitor to enter? I really don't know flash in depth , but my guess is that…
"what parts of flash are not open?" The source code of the Adobe Flash plugin, if nothing else. Incidentally, that does bring to mind one possible Hail Mary that could work: Open source the Flash player(s). Whether the open source community could fix performance issues on Linux and OSX depends on a lot of things, but they could certainly fix some things that would make it less aggravating. (Since it's probably imposs…
Flash's ActionScript engine, for instance, was donated to opensource and subsequently used to make Firefox faster.
(Adobe Flash Player includes licensed codecs from Fraunhoffer, On2 VPx series, H.264, more... Adobe can distribute them, but cannot license them for redistribution by others.)