I just read on DotNetKicks that apparently Visual Studio 2003 is not going to be officially supported in Vista. Allow me to say: Double-ewe. Tee. Eff.
I'm floored by this. Supposedly, though, it will only break debugging in VS2K3, since the security model has been reworked significantly. Note to self: Install VS2K3 on my Vista box and try to break it.
If this is true, I suppose one could develop in VS2K5 and compile the MSIL in .NET 1.1 with MSBee.