As I have already pointed out in comments in the linked-to articles, there are many commercial companies shipping GPLv3 Samba, and despite dire warnings from a competitor (who was recently purchased to take the SMB code off the market for any other users) the companies I listed are *still* shipping GPLv3 Samba. In fact there are now more OEM users than when Apple first announced they were removing Samba due to GPLv3.
Here's a good link on a talk I gave on why GPLv3 is a better license for commercial use than GPLv2:
My gut feeling about Apple and GPLv3 is on slide 20:
"GPLv3 prohibits locked down “app store” models, where devices will only install signed binaries from a third party whom they must trust completely"
Which tells you more about where I think Apple are planning to go with later versions of MacOS X.