I think if we're painting with really broad brushes, in the end companies care about ease of use. The cost of people is far greater than equipment. Of course, they don't evaluate hardware the same way that individuals do, so it looks like the price matters the most, because most companies already have established IT conventions and those qualify the highest for "ease of use" (they already know what they are doing).

So it will certainly take time, and it will take smaller, riskier companies demonstrating that some futuristic new platform is soooo much easier, but if that really was the case, it really wouldn't be that crazy to see large enterprises starting to shift this way.

Of course this is all based on the assumption that "it's going to be so much better and easier to use that it's obvious to the market as a whole." I'm not saying Apple will achieve that goal, but I think a lot of people who wouldn't traditionally have been "Apple fanboys" are rooting for Apple, simply because we've all seen them make transformative changes with the iPod and iPhone, and we like progress.