Re: Having a stable and common infrastructure is exactly what leads to Windows XP and IE6 ...
...still being widely used for a long time after they should have been buried.
I disagree. There's plenty of Windows XP and IE6 installs that are nothing to do with a stable and common infrastructure. Laziness, penny pinching and a disregard for the value of IT (and the opinions of IT professionals) are much more common reasons.
I'd say that "a stable and common infrastructure" and "open standards for data formats and exchange" go very well together.