Update: I discovered that the latest SDK for Web Services contains visual studio solutions specifically for 2008. Once I ran the 2008 stubs, the rest was easy and I now have all the SDK samples available in Visual Studio 2008. I'm planning to upgrade to VS 2010 soon so I'll update this post on how that goes.
John
vSphere Web servies SDK 4.1 .Net samples are supported with VS 2005 and 2008.