>Well, I hope they release it the 4.0 version soon. Do you know if SL 4.0 will allow developers to see the properties in the Properties Box for all XAML-written controls? I know we can see the poroperties or attributes in the XAML code itself, but I'd like to be able to set them off to the right in the Properties box.too.
>
>>It is not part of VS2010 and probably won't be released with it. The Silverlight team is on a different ship schedule than VS.
>
>>>I only have Silverlight 3.0 in my Visual Studio 2010 Beta 2 release. Has Silverlight 4.0 been released, or is that going to be released with VS 2010? I am asking this because I want to know if it is Microsoft's intent to allow the developer to set the properties of the controls, such as StackPanel, the Grid, and all other controls? I am going to post this also on www.silverlight.net

In VS2010 it's supposed to share designers with WPF which does support properties.

http://msdn.microsoft.com/en-us/library/bb613588(VS.100).aspx#wpf_and_silverlight_designer

"Improved Support for Silverlight

In Visual Studio 2008, you could install the Silverlight Tools to create Silverlight applications in Visual Studio. However, the designer support for Silverlight projects was limited. In Visual Studio 2010, the designer support for Silverlight and WPF projects are now the same. For example, in Silverlight projects you can now select and position items with the mouse on the design surface."