I'm ambivalent about text messages. Sometimes it's perfect to be able to fire off a little message when you have nothing particularly important to say, or if you have something to say but don't actually want to talk to the intended recipient.
But, I think they're almost too convenient. I've come to this conclusion because I have a friend who doesn't have text messaging. Every text I send has minimal cost associated with it, and since I'm trying to be cognizant of that, I don't want to send them on a silly whim, like I do with so many other people. It's made me wonder what it would be like if all my text messages were actually calls. I'd never call to say pointless things like, "Ungh, my staff meeting is SOOO boring", or "This totally cute girl just walked by." And I'm thinking that's the problem with the text message: it trivializes communication. It's so convenient that we stop working at it -- which, if you're a male like me and not prone to communicating well anyway, practically dooms you.
Of course, texts are great for saying things inconspicuously, like if a co-worker has his fly down, so I don't think I'd ever be able to give them up. But outside of that, I'm thinking I might try to lighten up on the texting a little. If it's not important enough to call, is it really that important?