My number one requirement for any email interface is that it easily shows the "conversation history" of any contact I'm seeing. This saves me so much time, with

My number one requirement for any email interface is that it easily shows the "conversation history" of any contact I'm seeing. This saves me so much time, with the current software I use. I don't love my current software, though, so I'm always on the lookout for new options. Is this a planned feature?