More details I stole from GoNintendo:
- Takes place in Arumia
- Main character - Hajime (male), but you can select either a male or female character
- Darkrai, Lucario, Heatran, and Cresselia make appearances
- 17 possible support Pokemon: Munchlax, Kricketot, Mime Jr., Cranidos, Croagunk, Machop, Shieldon, Chimchar, Piplup, Turtwig, Pachirisu, Starly, Snover, Misdreavus, Hippopotas, Sneasel, Gible
- side quests in which you help towns
- collect cards to give boost to your capture styler
- Surf on Pokemon during certain portions of the game
- WFC included, but details are unknown
Most of that means nothing to me, can't really say I paid that much attention to what I was doing in Pokemon games.