# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-10-26 22:48:39 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/129328617468596225) In reply to: [@OliverJHaslam](http://twitter.com/OliverJHaslam/status/129316044941705216) @skysarahjane @theiBlog When texting another iPhone running iOS5, the iPhone uses iMessage instead of SMS. iMessages are coloured blue.