Sorry that sounds a bit negative
It's just the unfortunate truth.
You might also discover that the sorts of situations people find themselves in with mobile devices when playing games also don't really lend themselves well to traditional immersive style games at all too. People want to play games on mobile devices to distract themselves from short periods of boredom. They don't want particularly vexing challenges, certainly not ones that require them to concentrate hard, nor anything that requires even the remotest bit of learning controls.
What he is nicely trying to say, the majority of people that play games on their mobile phone are most likely on a short break from work, in bed when the missus won't put out or taking a huge shit on the toilet. They are also usually the lowest common denominator, they don't want to be challenged but they want to "feel" challenged. These people are usually at their happiest when they feel fulfilled, most of the time they go about with an undeserved sense of accomplishment anyway.
Make a game that rewards the player regardless of how trivial it is, make it shiny with lots of effects, controls should be bare minimum and easy to use and over all; the game should be easy enough to complete but hard enough to fail the first few tries.
Good luck with that.