Is Mantle "Open-Source"? Is "TrueAudio" open-source? Is "CSAA" open-source? Is "PhysX" open-source? Is "MLAA" open-source? These are all closed off to AMD/nVidia and anyone they wish to share with (including of course, NDA's). Stop making out that everything AMD do is open to all, when it clearly isn't.
nVidia said they would open up PhysX and even your man Roy said it when he was at nVidia but I guess so long as you keep putting nVidia in the Dog house and AMD in the Spotlight of enlightenment, you will only see it as you want.
Edit:
And they can claim Adaptive Sync is open source, because all they did was ask VESA to add it in the DP standard.
Again, because you really seem to badly struggle with this, Trueaudio is AMD's hardware implementation of SOMEONE ELSES TECHNOLOGY, which they licensed, Nvidia is free to license whatever they want from the same company, dozens/hundreds of other companies license audio tech from the same company.
The tech behind trueaudio is only capable of playing on AMD hardware currently because AMD is the only company that has licensed this specific tech so far, Nvidia is capable of doing so.
MLAA is NOT FREAKING AMD, Intel use it, other companies use it, it is not locked off and everyone is free to implement it, I can't actually work out who came up with MLAA to start with. All I know is AMD added the capability to use the mode with the 6xxx series, that doesn't mean they came up with it.
Mantle IS open source, how do we know? They've handed it to the two existing biggest gaming API makers and said do of it what you will.
My issue isn't that AMD is good or Nvidia is bad, it's because you posted a completely incorrect list of "closed" AMD things Nvidia can't use, when it is true for none of the things you listed for AMD and true of all the things listed for Nvidia. Nvidia not only lock out many of these things from AMD users... they go as far as to LOCK IT OUT FROM THEIR OWN USERS. TO pretend Nvidia isn't bad is simply ridiculous. YOu buy a gpu, you also buy an AMD gpu, thus now you can't use a feature on the Nvidia GPU.... because Nvidia is a lovely company and helping the industry somehow by locking out features from their own users that their own users have paid for?
Nvidia did not and has not publicly stated AMD is free to use physx, that they at one time said we would consider licensing it means nothing.
They've said the same thing about dev's being free to license the source code version of Gameworks... this was AFTER they point where they did not offer that as an option. They changed their minds because they got flak for it, of course stating someone can license it can be technically true, but if you tell a dev that gameworks without sourcecode costs 40k per game and with sourcecode costs 10million.... is it really offering it to anyone when they attach a price no one can afford?
In no way is vaguely offering to license something(with no cost mentioned and thus likely to be a situation of "we'll license it if they come up with 1 billion dollars") the same as openly stating anyone can use it. Again AMD have given Mantle code over to Kronos and told them they can do whatever they want with it and the same to DX.
In exactly what way isn't Mantle open source if AMD are giving it out freely, telling people they are allowed to use any part or all of it and do what they like with the code and telling everyone they are free to make drivers for their own version of the code?