[greggman]

It is and it isn't. Unity is great but it's got like a min 5MB download for just a spinning cube. Flash (because the plugin was built in) started instantly and had built in support for streaming. Unity can stream, after the 5MB engine download, but for whatever reason it's not common.

[Keyframe]

I meant more as in people with no technical knowledge whatsoever creating interactive stuff. Just look at the cambrian explosion of indie games from (most) people who probably can't do long division by hand.