Honestly, they should have known all that for awhile now.
There aren't a whole lot of game out yet...because it just got released. The PS4 does have more game, most of which are indie games.
I agree that the lack of backwards compatibility sucks, but if you can just keep your 360 around, its not that big of a problem.
It's a fine piece of entertainment. I've had it since day one, and it runs smoothly, the voice commands are pretty awesome, and BF4 plays great on it(save for the occasional server hiccup).