If Flash had been open source early on it might have succeeded and become a core web technology. Microsoft, Apple and Google would have been in charge making the runtime secure and high performing.<p>Macromedia&#x2F;Adobe would have continued to be in the position of providing the leading development tools.<p>The web would be very different. I actually think that we are lucky this did not happen.  I find our current web technologies to be a much better solution over all.