On a AR theme I think there will be a high level language created within ten years for AR that will try to make the following accessible
People will want to mash up different AR services in one "view" so you don't have to switch between them. There needs to be a lingua franca and HTML doesn't seem suited. I'd think it likely that it will be some XML variant.
If AR gets any sort of popularity, even just among early adopters, I guarantee you that there will be several competing tools for doing what you describe, with more coming out every month.
I would like to propose this as a thread for people to write in their predictions for the next year and the next decade, when practical with probabilities attached. I'll probably make some in the comments.