On my daily work, I email, IM and make calls on my mobile phone with my colleagues, and occasionally I receive fairly long and informative SMS messages from my boss. But I rarely exchange messages with colleagues and they are rarely longer than 3 words.
These long and informative messages made me realize, there is a whole world of communication using SMS and MMS that needs my attention to be used more effectively. I can benefit from mobile messaging in two ways. The obvious reason is it allows me to communicate from anywhere on the world. Also it adds a different mode of communication then email, IM and voice. It provides a lower prioritazition then voice and IM but higher one than email.