Google: "Android is the Linux desktop dream come true" (der Standard)

"Likewise, there is almost non existing customer demand for long term support."

Not at all. I, for one, would like more long-term support, but I realize that it's not in the interest of the carrier or device manufacturer.

"The only truly important thing is that community collaboration must not slow product development cycle."

That's far from the only important thing. Android partners also want to be able to market new features when and how they wish. Sometimes that means keeping information from the public (or a public mailing list).

I don't have a solution to that problem, but I think it's clear that it exists.