Microsoft ... when will you give us one IDE?
I am not one for complaints, but the INTEGRATED development environment is very DISINTEGRATED at the moment. If you have the joy of being in the early technology adoption teams you will be forced to run your production environment and a number of separate CTP/BETA bits and pieces, forcing most of us to resort to separate machines or polluting our precious hard drive and memory space with Virtual instances of separate environments. CTP/BETA implies that one has a thick skin and an understanding that BETA == BETA != PRODUCTION (!=)^2 CTP.
BUT ... when working in a production environment supporting pre-.NET, .NET 1, .NET 1.1 and .NET 2 environments, all supported by Microsoft, one ends up running a number of similar, yet vastly different, Integrated Development Environments, with the normal dependency and curious "who overwrote these system files" dilemmas, introduced by Visual Studio versions, 3rd party tools (i.e. NUnit), not to mention the various application blocks and enterprise libraries. For those with terabytes of disk space and GIGs of RAM this may seem like a minor issue, however, for those working amongst 200+ developers with limited resources and maintaining complex and technology-varying solutions this minor headache turns into a migraine.
Microsoft, when will you release an INTEGRATED development environment, in which we can develop and maintain all supported versions of Microsoft environments? IT would also vastly simplify integration with TFS/VSTS.
Enough waffling ... I am, however, waiting in anticipation for the "I"DE.