Open letter to Sumo: please reconsider your decision on cross play...
If there is one game (or an entire series for that matter) that lives and dies by its community, it is definitely Little Big Planet.
Preventing LBP3 from being a cross-play game will severely fragment our awesome community and result in a more limited pool of players on each platform down the line as the months go by.
Between the PS4 players who don't want PS+ and will therefore buy the PS3 version to have access to online multiplayer, the PS3 players who don't want a PS4 and will only buy the game on PS3, and the late PS4 adopters who may get a PS4 in a year or two but won't rebuy the game then for PS4, the players will lose a lot of potential playing partners in the months/years to come by not having cross-play in the game.
Even buying both versions of the game does not solve the problem on the players end, since even then, you will have to choose between 2 distinct pools of players, not being able to play with all your friends at once, etc...
Please Sumo, please... reconsider making LBP3 cross play and try to implement this feature in an upcoming patch. The longevity of the game and the great community aspect that this series is founded on will GREATLY benefit from this and it will also increase the likelihood that we see an LBP4 in the future by having a more prosperous and active LBP3 in the meantime. Thanks for reading.