RE: Their "real" products, however, are still as closed tight as a ...
"Their "real" products, however, are still as closed tight as a nun's crunt. VS? Office? NTFS? IE? No chance!"
This is very true, and I am not fooled by it.
I am, however, continuously surprised at the amount of tech people (not meaning you, sir/madam, as I don't know your stance) who seem to give Google a free pass on this self-same issue. The Chocolate Factory are cool guys who do OSS - apart from anything that matters like the Search/Ad stuff that provides over 90% of their revenue and for which they don't even reveal the exact algorithms let alone the code.
Again, this is not to excuse MS but rather to use the opening to remind readers about the real nature of Google too.