Asp – Installing .NET 3.5 on a server with .NET 2.0 applications

It should not be a major deal for them to upgrade the .NET framework version because it is not going to affect what you already have there (such as 2.0 apps). It will also enable you to develop new applications in the updated framework so that things like LINQ and better ASP.NET AJAX is built in.

Talking about convincing them to upgrade actual applications to the 3.5 framework is a different story altogether and you will need to do some sort of cost-benefit analysis on upgrading your applications to convince them (if this is in fact what you were looking for).

The javascript intellisense is a huge improvement over anything that's come before. But at the same time it still fails in some very spectacular ways. All in all a good step but not something I've been able to use as much as I'd like.

The extension methods and linq (linq to objects and lambdas, not just linq to sql) are very cool, but since you have an orm already set up you won't use them as much as you'd like either.

WCF is okay, but you're probably not going to re-write your existing services for it.

I think the biggest reason up there is keeping your employees happy and attracting good new ones.