When I first heard about text messages, I thought the technology would (at best) be used for a brief time and then die once people had email from their phones.

When I first heard about text messages, I thought the technology would (at best) be used for a brief time and then die once people had email from their phones. I was wrong. It turns out there's a huge market for short, in-the-moment messages. And MMS is just text messages with more flexible bits allowed. Yes, iPhone users will continue to email pics, but they'll also MMS pics like crazy--two entirely different use cases, it turns out.