The underlying situation here is that the runtime should be an open standard. Adobe's insistence that everyone should be dependent on them is absurd seeing as they have little market power to make such demands. There is a huge need for a solid authoring tool for the canvas and Adobe is the right company to build such a tool. Adobe has been whining for far too long about its inability to lock people into a proprietary…
I don't use Flash because Adobe forced me or insisted that I use it. Flash was the only solution to create highly interactive applications on the web for a long time and gained huge popularity because of this. The Flash plug-in was a failure on iPhone so they went out of their way to use the Flash environment to create native iPhone apps (i.e., no longer Flash).