Gmail updated today with a new option that allows users to turn off its trademark threaded conversation view for a more traditional email inbox.
We love Gmail specifically because of how it threads conversation into an easy to track flow, but some people still prefer the classic river or RE: to threaded conversations. Previously, that meant you either used Gmail with a desktop client or didn't use it at all. Now all you need to do is head to your Gmail settings, find the section labelled Conversation View, turn it off and save your settings.
Like all new Gmail features, this one will roll out over the next few days, so if you don't see it right away, you should soon enough.
Turn off Gmail's conversation view [Official Gmail Blog]