All the tech world’s a duopoly, but how do Microsoft and open source fit?

I really like Larry Dignan’s posts on ZDNet, and his post Tuesday on the natural state of software markets (duopoly) is probably accurate, though I wish it weren’t so. Customers lose in many ways when industries consolidate. Having said that, it’s also nice to not have to contemplate a blizzard of choices when you just want to know whether to wear brown shoes or black shoes on a given day.