This is very Interesting for all you SMS'rs. Ever had a night on the town and had a little too much fun and decided to send a SMS Message to someone and fully regretted it right after hitting that send button. Well Samsung may be coming to your rescue. They have recently filed a patent that will essentially delete a sent message off of the receivers phone.
However, contrary to the hopes of the sender, if that person you sent the message to has already read the message, you can't delete the memory of the person who read the message.
Read the whole patent here if you want to.