The other day, I sent a text message and the symbol next to the sent message indicates I sent a "PIN" message. I didn't do anything differently, used friend's address book entry to send it, didn't fiddle with anyone's PIN, figured I was sending a regular text msg.
What's unique about a PIN message from SMS & MMS? Cost? Wha? Are either of these methods different than what I always knew as a "text msg?" I think SMS is a short, worded msg, whereas an MMS contains a photo or attachment, right?
Whew, so much to remember for this old man! I love it!