I've got both the v2 and v1 and there is a substantial difference in screen quality. The v2 is noticeably shaper with better contrast and edge enhancement.
I have posted about this before on this board and been shot down by others saying 'there is no difference'.
If they had both of mine in hand they could see the difference immediately for themselves.
Just my 2 cents...but I get irritated by folks who have only v2 or v1 and swear the two are the same....they ain't in my hands..