When .net framework 3.0 was introduced the first problem i got was there wasn't a IDE for framework 3.0.Since Visual Studio 2005 was designed for 2.o we couldn't use the full functionality of framework 3.0.(Such as the WPF application coding)
But i think "Orcas"(still only code named) will solve all that problems & it'll be more powerful than visual studio 2005 as well.(It's listed abilities sure promises that)
All hopes high for the release of it soon.