Clint said:

Are you sure you're on the RTM version?  I did a test WPF project and it never pulled up a .Net 4.0 only item.  I used the System.Threading.Task lib on a 4.0 project, then downgraded it to 3.5.  Soon as I downgraded, it failed to compile.

 

Parallel

 

I know beta 2 had some speed issues but on RC and RTM, on any machine I put it on, it works rather nicely.  Do you have any third party extentions installed?

.For(0, 10, (i) => { Title = i.ToString(); });

I take back what I said about VS2010 showing .NET4.0-specific entries in a 2.0 project, I was just looking at the intellisense list and noticed some things I never noticed before (namely Array.LongLength).

 

I've no issues with VS2010 performance in general, but it's just the "little things" in the UI lag that get to me, such as when you open the menus for the first time in a session, subsequent openings are as fast as I'd expect them, but there's still a noticable delay for the first time.

 

But yeah, so far the main pain is the lack of actual line indenting. I'll gladly pay someone £50 to write an extension that fixes this.