I didn't play the DS games so I didn't see what their web integration was like, but this looks pretty neat for this game. I really like the logbook timeline and medals, which are basically achievements. I was looking forward to annoying people with auto twitter updates every time I did something, but it looks like you have to manually tweet something. That's probably a good thing though because it tracks a crazy amount of timeline events. The Pokemile minigames aren't up yet but they're probably not that great aside from the fact you can earn items. Also, I was using the Homepass MAC spoof trick to get Streetpasses overnight and I feel like I have so many compared to the cost of items that it's basically cheating.
If you don't have the game and want to see a profile Check me out!