I would love for someone to make a birding/citizen scientist app that's well gamified. This is basically pokemon. You go places and find different creatures and collect them.
I would love to play that game, and the data could maybe be useful for researchers.
On the other hand, people playing Pokemon GO trespassed private property and protected spaces, so I wonder how far would the players of this game go just to make a pic of a "legendary" animal at the border of extinction.
Seek is impressive just for the sheer number of completely different things it could identify, from mosses to animals. I used it to find native and invasive plants in my garden.