Enrique,
I have to disagree with you on that. There is a huge demand for web apps but alot of the high end logistical and engineering apps out there will not translate to the web with the current generation of tools. We have one app that if a combo value changes it must run about 1500 calculations and refresh them to the screen immediately. I have yet to see this behavior handled very well on the web. Just too many call backs to the server.