does anybody remember what things were like before the internet was widely available to everybody? personally, i used compuserve. they were able to charge hideous rates per minute, because they were a de facto monopoly.
allowing a company like adobe to control such a huge swath of the internet is a step backwards towards the compuserve days.
It's not standard and it limits accessibility.
Flash is as standard as you can get and air is just an extension off that allowing you to do more stuff off line.
The web standards are HTML, CSS, and JavaScript. Flash is neither of those. The specification is not controlled by a governing body. It is controlled by one company.
Talking about Firefox plugins is straw man, has nothing to do with this conversation and I don't know any websites that require a Firefox plugin to work correctly. If they exist, I don't use them.
Just because it's not open does not mean that it's not a standard.
You are welcome to find alternatives and no google has nothing even close to this. No one really has when you look at it from a holistic point of view, which I would normally recommend.