I have recently started playing Fallout Shelter on my Ipod and have been enjoying the game despite my device not being able to handle the game in it's entirety. My vault limit has been capped at having only 18 dwellers because if I exceed that number I am unable to play the game because my device can't quite handle all the movement. I would like to see what the rest of the game has to offer but I am stuck with the room layouts available to a player with 18 dwellers. I think this could be easily remedied by giving me and other players experiencing the same problems the ability to bypass the population restriction by purchasing the room layouts with caps. I don't at all think that this would be unreasonable from a game design standpoint and it would let more people play the game at a somewhat more complete level.