One reliable barometer for the health of any gaming platform is to take a look at the exclusives. What does the platform have to offer that no other does?
If we're considering the mobile platform, there's plenty for others to be envious of. Its best titles define and are defined by the host platform, often shaping the way we think about controls and accessibility across the gaming board.
Pocket Gamer has run through five of its favourite mobile exclusives from the past year or so. Some may be on their way to other platforms as we speak, but all have established themselves as mobile titles first and foremost.