# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-04-09 22:43:54 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/11905352463) Trying to decide whether to stick iPhone OS 4.0 on my 3GS so I can rock it multitasking style before anyone most :)