I'm actually torn on this, because the fact is that Flash can do things that you realistically can't do any other way. In my case, I've written a couple of video conferencing apps that need web-web and web-Android connectivity, and Flash/AIR is still definitely the easiest way to do that sort of thing. WebRTC has promise, but it requires a reasonably recent browser (and not Safari), and until very recently it didn't work in WebViews on the Android side.