Oh, that's cute...you think xCode, Python and MySQL can actually be compared to Visual Studio, C# and SQL Server.
I guess I just feel spoiled by Visual Studio, while every time I start something in Python I feel like I have to spend so much time trying to find quality tools to make it do what I want. It just doesn't feel like a very complete solution to me.
I said Exchange because it's the one thing I've read about. I am not a businessperson, nor am I a programmer: the closest I get to programming is PHP, because it's all that I need. I said that that's what Apple's been up to, because it is: they're obviously pushing to make Macs business-friendly.
I'd guess that most businesses don't have computers for the sake of programming, though. Most people in the workplace don't program. They email, they discuss things with coworkers. With a few tweaks, the Mac ought to be ready for that sort of thing in a secure environment. And that's just as much a part of business as coding is.