| For a game that is 90% Non-PVP, it is completely pointless. On a full PVP server, this is a great idea, but on something that's basically a "blue" server, pointless.
You have huge groups of friends from other games wanting to play WoW, and with only 3 races per team (Human/Dwarf/Night Elf vs Orc/Tauren/Unrevealed) there is not something for everyone. You have groups of anywhere from 20 to 60+ people wanting to stick together, there is no way all of them are going to all play one side or another, not only due to race choices, but class choices as well. For promoting social interaction, this is a really bad idea. Absolutely no reason to split people up like this in a mostly non-pvp enviroment.
I'm sure any problems that arise will be ironed out in beta though, I trust Blizzard to do a good job.
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