Is there a reward for getting all pickups? If so I believe that its broken as it doesnt give me anything after I get all of them and there is also a bug that allows me to keep picking up the same item. Other then that I love the game and would love to see more 3d MTF games. are you planning on working on why more 3d mtf games?
Are you able to pick up all items multiple times, or a specific one? The game should count the number of items you've picked up and unlock the reward if you have 19 or more, so it definitely sounds like some kind of bug.
As far as future games, yes! The next one is in production now, though it's probably still quite a ways away (I'm very slow).