Hamilton:
I think rich internet applications are the next stage for the internet, and there are several ways to go about it. XML-HTTP seems like a very promising direction. I'm also very intrigued by Laszlo.
To answer your question, I think whether or not we use XML-HTTP really depends on the interest of developers. I personally am very intrigued by it.
Thank you also for that link. It was exactly what I was looking for after seeing the Google Suggest site, and the deconstruction of how it worked. I needed an easier primer, and this helped.
