# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-06-23 16:44:13 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/16861737448) In reply to: [@BBCClick](http://twitter.com/BBCClick/status/16861044057) @BBCClick I've been running iOS4 since the first Beta, on my 3GS. Running pretty quick, haven't seen any noticeable difference, good or bad.