Actually I think Google's openness is a quasi. Otherwise you wouldn't see them blocking the acer phone.
So, Android's openness is absolute. Google's openness (Google Play, Gmail, etc) is not.
Yawn. Business is business. Using open source software doesn't magically absolve you of responsibility to your contracted partners, nor give you the right to jerk your suppliers around. The simple truth is that Amazon handled this gracefully and produced a great product, and Acer screwed it up and wrecked things for their partner Alibaba. Making Google out to be the bad guy is just fanboism.
Funny, that reminds me of the scorn heaped on Apple for the patent lawsuits against Samsung. Or on Oracle and Microsoft. Business is business, right? Regardless of other companies getting hurt?
Also reminds me of this post by Gruber supporting Apple on in app purchases:
http://daringfireball.net/2011/03/dirty_percent
It's really ironic how people claim their favorite company is better than the others because of blah blah blah reasons, but when it comes to power plays hurting third parties like this, support it by saying "business is business".