# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-04-11 06:44:48 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/11979052911) Installed and playing around with iPhone OS 4.0. Love it so far. Threaded conversation in Mail, like Gmail, is a big deal for me.