Google Wave, really?

I recently was given the privilege by google to try out google wave. After dinkering around with it for a few hours I have to admit, I don't get it.

It seems to try and combine e-mail, with some newsgroups/forums thrown in. Currently it's horribly unstable, and I'm trying very hard to see why it's at all useful. I use Facebook to see what my friends are doing. After a long period of resistance after trying out it's predecessors Friendster and Tribe only to fail I finally gave in. Facebook seems to have a good thing.

Then there's twitter. I'll use twitter to get the pulse on a topic. You can get a 5 second opinion, news with it. It's like a way for the hordes all to get their voice. I don't post that much with it, but it seems like a web based irc only...searchable.

With wave I just don't see the practical use. I see how it works, but I don't see what niche it'll fill or what problems it'll solve. I've been reading the tips on lifehacker to no avail. My conclusion: Call me when it actually does something. So far it just seems a open forum for people to talk on, but aren't there already enough of those?