>I was following this thread and I can imagine it's somewhat of a pain to deal with those issues that were in desktop applications no issues at all. I was thinking if not some of those difficulties would be easier to control when using third party controls, like for example Teleric ASP controls?
>Perhaps somebody has experience using those tools and shed some light on how helpful those would be in practice.

Yes, the desktop design was much easier for the look and feel as the only factor was the OS the application was sitting on. Now, it is the OS and the browser, with some many versions, HTML 5 or not, and such. It is a piece of art to succeed in having something close to be exact in all browsers, all versions and all platforms.

>I would really like to know what we have to expect when we would try to build applications using ASP technology with HTML5. This was actually the thing that we liked so much with Silverlight, because having a plugin you can control as much as we could do on the desktop.

It helps as it enforces browser to a set of specific standards, despite some of them still refuse to adapt at 100%, and where known bugs are still present.