I don't know if it's been mentioned, but the PS Mobile title Out of Mind is pretty awful. Thank god it only cost $1.50, or I'd actually be pissed. Overall, the game design is just poor. I thought it was going to be something like Life of Pixel, but unfortunately, it's just sloppily put together, with some unfocused and weak game design. The visuals are decent as well, but the game play is blech. It feels every bit like somebodies amateur class project.
EDIT: I also just bought Machinarium, and it's currently downloading. I hope it's good!