Anyone who uses GNOME would know Evolution. It comes as the default email client in most of the GNOME based Linux distros. It is one of those applications which very few people actually uses because there is a much better alternative in Thunderbird and, in my opinion, it has a horrible user interface.
Well the user interface part may soon change if Allan Day’s design gets implemented. He has come up with an amazing design for Evolution using a three pane interface.
Do I see a hint of Elementary in the new design? This design looks much better that what it looks like now and I really like the three pane interface.
Another thing I like with the new design is the support for threaded view of the emails.