PSA
It has been confirmed that the rest of the Johto Pokémon are to come to Pokémon GO later this week. This update includes more Pokémon, evolutions, new methods of encounters, new berries and more customisation options for your Pokémon.
First, Pokémon may act differently when you're battling them
Next, with the new Berries, a Nanab Berry will slow a Pokémon's movement and a Pinap Berry will double the Candy you receive on capture.
Gender also makes its first appearance in Pokémon GO, with the Male or Female symbol appearing to the side of a Pokémon's name, as well as any gender difference if one exists.