The speed is what I'm referring to. I think that's what works in its favor, really. Nothing beats a proper, full-fledged guildsite/forum for maintaining a formal raiding schedule, but it's hard to let people in-game that might be relying on you know of real life issues without logging into the game. It's hard to post to guild forums and websites when you don't have a computer, while you can tweet from just about any modern cellphone. I'm not suggesting it's going to replace a proper guild site, or the ingame calendar, or ingame chat, but it might prove to be handy tool to have.

An example of the situation I mean would be just the other night, when my internet connection died on me for about ten minutes in the middle of our Naxx run. Since my GM is in another country and can't call me, and I don't really know any of my other guildies that well to give them my cellphone number, I was completely without a method of contacting them. If we had a guild Twitter set up (the suggestion has arisen), I could've tweeted from my phone about what had happened. That's just one example my sleep-addled brain could come up with for how useful this kind of thing would be.

A wow-based Twitter has the added bonus of being separate from your "real-life" Twitter if you have one. Your entire group of friends doesn't need to know that my connection died...just my guild. Hopefully some kind of cellphone-based feature will crop up in the future to make this really worthwhile. Hopefully before the real Twitter slaps them down for using the name.