Delete iPhone MMS Messages Only I'm running out of space on my little 16GB iPhone 4S. I have noticed that a very large chunk of the space is taken up by the Messages app. I believe this is due to the tons of MMS messages I've sent and received over the years. I would like to easily delete all MMS messages (pictures/videos) without deleting any conversations and without having to manually find and delete each one. Is this possible?
On iOS 7, in the conversation window, if you hold on a message balloon you get the context menu with two options: Copy and More.

When you tap More, you will get into the edit screen where you can select and delete individual messages.