http://es.infragistics.com/support/supported-environments.aspx#SupportedEnvironments

We also announced support for VS 2010/CLR4 since early last year when the bits became publicly available.  If you find an issue with a control in VS 2010, please report it and we'll look into it. 

We work almost daily with Microsoft on issues that come up with VS 2010 as we are regression testing against builds we have access to.  Some are areas we find we need to fix and others are bugs in the beta software from Microsoft.  Microsoft is also doing a great job of letting us know specific changes in the CLR that could be affecting how NetAdvantage runs in VS 2010.

As VS 2010 nears official RTM, I would imagine that Microsoft will post another public beta or RC which will take care of most of the issues around NetAdvantage and what you may be encountering in the current beta of VS 2010.  If you are running into specific issues with VS 2010 that you believe to be with NetAdvantage, please post to the forums here and we'll test it out with our current VS 2010 builds and look into the problem.

As always, feel free to shoot me an email at jasonb@infragistics.com if you need anything else,

Thanks

I'm running into the same issue.

Infragistics states they are ready to help you, but the win form controls do not work. I put a MDI dock manager and toolbar manager on a form, save and close the form, then reopen the form and i get all kind of errors: Duplicate component name  '_Form1_Toolbars_Dock_Area_Left'. Component names must be unique and case-insensitive. And i have yet to see any posting about this. I know its not my machine, i just recieved a brand new laptop and the first thing i did was install VS2010 and Winform 2009.2.