You might not know this, but Twitter doesn’t support two-way SMS (mobile phone text messages, that is) all over the world. In fact, most of the world is limited to updating your Twitter account with SMS, but you can’t get updates to your phone. I’m not sure why you’d want that, especially since any decent phone has a web browser that can manage the mobile site, but that’s up to you.
Anyway, if you’re Canadian and want to use SMS for updates both ways, well, now you can! Twitter obviously thinks this is a good idea, to manage your twittering via SMS, and are planning to add more countries to the list. To me it feels old and boring, but then again there might be a business model here. After all, the mobile carriers probably like any increase in texting since they make money from it. That’s a thought…