And yes, it matters a lot which company you support, since not only do a significant number of insignificant funds add up, but you're giving them mindshare and encouraging others to follow (which is kinda the point of pg's mac essay).
Just to give you an idea of why I'm so mad at Apple, the project that I'm working on right now needs a very good mobile component. Android is completely open and lets you do everything you need, so the first version is based on that. However, there can't be an iPhone app because Jobs is a control freak, he has decreed that I should not have the ability to write what I want to write.
So no, I just don't understand why people that supposedly value openness have such adulation for one of the most restrictive platforms out there. The eye-candy isn't worth it.