Kenology on 18 September 2007
This is just the first of many online features for Brawl, so let's hope there's even a slim chance that voice chat might be included.
Also, I think the lack of leaderboards only applies to "With Anyone" mode. Melee had extensive stat tracking and I'm sure we'll have the same for Brawl, as well as leaderboards/stat tracking amongst friends.
