It appears you are right.
http://www.itproportal.com/2012/05/...ed-super-amoled-hd-plus-not-tizens-dev-phone/
The SGS 3 has Super AMOLED HD PenTile, not Super AMOLED HD Plus.
Currently I am most likely to get a Galaxy Nexus for the vanilla Android experience at a much lower price then latest gen phones like the SGS3. Just waiting for the SGS3 and others to actually arrive and drop prices further so I can get a good deal on a used one. Although, I am having second thoughts about it due to lack of gorilla glass.
However this thread is not me asking for what phone I should get, its me asking what the next gen phones ARE.