For me, my Blackberry is like shooting a rabbit with a canon. I use it as a phone, appointment book and for e-mail, when it can do so much more. So, here are a couple of rookie questions. In my address book I have an option of composing an SMS to someone. Is that the same as texting someone? Then, what's it mean to MMS someone? Or is this all BS?

SMS is a short message (text message) whereas MMS is a multimedia message (usually attaching a picture, video, etc.).

SMS is a text message.

MMS is a multimedia message and can include audio, video, pictures, etc.

SMS stands for short message service, which is the same as a text message.
MMS is a multimedia type message that can have pictures/audio or the such attached.

Anything else will surely get answered.

Edit: Guess they beat me to it, but hey you got three answers to your question.

You'll be huntin' bear soon. The BB's just that way. (I remember first computers we were given in the office. 10MB drives. Who needs 10MB? a few people complained. Nobody needs 10MB. Nobody will ever use even a fraction of it. Well, once you got it, you find ways to use it to capacity. And then you get bigger, better, faster and use that to capacity...)