We just got word of an interesting new microblogging service: Rejaw. Rejaw is an interesting combination of microblogging with real-time chat. In some ways, it is similar to Plurk and Identi.ca, but its interface looks a lot more traditional and instead of just alerting you to updates, it pushes them directly onto your screen in real-time. On the client side, Rejaw is taking the unusual route of releasing a Mac client first. A Windows version should follow in the very near future and the team is also planning to release an iPhone app.

Rejaw: Combining Microblogging + Chat - ReadWriteWeb

It's interesting... But, I wonder if Microblogging and Chat are combined naturally. Personally I think the usage of them are considerably different.