I think we are planning to deliver the "core" of what you are asking for. Right now your DNN site allows you to "control" the user experience of your sites. You decide what modules to make available and you decide the skins and the permissions ect.

What Google Wave offers is web 2.0 interactivity. It is on this subject that some of us are saying "Give me a break, this doesn't come close to what you can do in Silverlight".

So you may say fine, Let me see the actual working applications. So we say, give us a bit of time, but were confidant we can match the "Wave" and far exceed it.

Right now we are in a waiting pattern with Silverlight 3 and it's ability to talk to apps on your desktop. Interacting with Gmail on a web page is great but interacting with your Microsoft Outlook running on your computer on a web page is a bit higher experience.

I dont undrestan why comparing it with Silverlight or telling you can do it better with Silverlight or whatever.

Google wave is an application or product or what you like to call it. The code for the application will be open source so you can run the application on your own server. There will be api for developer to write code to communicate to the application. There are questionmarks regarding if the application needs new standards for the browser to work in all parts.

Today we have applications like Twitter facebook or DotNetNuke, to say that those applications is nothing just because you could do the same with Silverlight and much nicer is rather foolish.  

I have played with Silverlight 3 and I love it. You probably can do an application like Google wave or an application like DotNetNuke or whatever but just for you can do it in an other technique you have to realize that its a difference with do it and can do it.