Just installed 2.0. It adds a menu in Video called "Frame Rate", from which you can select "Auto" or "24 FPS". Great!
Unfortunately, it still does not work with my Samsung T6187s. Even after re-initializing the player, setting to 24 FPS, my TV only displays 1920x1080 60hz when it displays 24hz from my PS3. Weird.
It also hasn't fixed the problem I had playing my French "Pan's Labyrinth" which plays fine on my A2.
What a tease this firmware was.