Flash as Frontend & Dot Net as Backend

Why we need to blocked in HTML limitations ?. Flash give a wide range of freedom in web applications as client.In html lot of factors we need to take care of to make a robust design from different browsers, we limited to use sound , videos and animations.Flash gives a development freedom like desktop application.Sure there are limitations in flash ,but these limitations can be overcome with the help of server side scripting,flash request resource from server and give a user interface for the clients.i am interested to use these combination,i am using the communication medium as XML ,because both flash and .net give resources to use xml.

Here i am attaching a sample flash application which consumes .net at server side.

This is a Text-To-Speech & Lips Sync Application Developed in Flash with ActionScript 2. This is a module(under construction) of my project .
Pls Check It..