Pokemart

In the Pokémart you can buy in-game items, in the update 2.1 alpha (04/16/2011) you can only buy 5 kinds of stones, the developer said that he would make it prettier and add items later.

Pokémons that evolve with stones:
 * Pikachu → Raichu
 * Nidorina → Nidoqueen
 * Nidorino → Nidoking
 * Jigglypuff → Wigglytuff
 * Clefairy → Clefable