I was talking to a friend the other day about the lack of SMS functionality available with Tumblr. He's a newish Twitter user, and loves the ability to easily update his Twitter with a simple text message from wherever he is, and couldn't understand why other services, specifically, Tumblr, didn't support this functionality. I guess the same question applies to Posterous too.

From my point of view, I'm entirely sure I'd want that for services like these. Twitter makes sense for a number of reasons, primarily it's 140 character post limit fits well with SMS, and beyond that, that's all Twitter does. It posts 140 character text messages. But for things such as Tumblr and Posterous, they're a lot more media intense, and without the 140 character limit, I imagine it becomes very difficult in the backend to support multiple texts into one post.

The main thing for me was that I'd never even noticed this limit because with my iPhone, I use email as much, if not more so, than SMS, and obviously that's fully supported by most things. It made me wonder whether this is an iPhone thing. Do other users (BlackBerry the exception), not see emailing as a legitimate, manageable way of handling messaging on a mobile device? It's definitely cheaper than SMS, and without most of the limitations.