Does anyone else use this app? If you haven't heard of it, it's a picture messaging app (that also does videos), where you send a pic (or video) that can only be seen for a certain length of time (like 5 secs or whatever) before it disappears. The people I know who have it seem to use it just to send pics of themselves pulling stupid faces or whatever, but it's surely designed for sexting. You can do the iPhone thing to take a screenshot when the pic is there, but the person who sent the message it alerted if you do that. Apparently Facebook are now launching a rip-off version called Poke.
To sum up: SEXTING, FACEBOOK, IPHONES, SHUT UP