Terra is a GTK+3.0 based terminal emulator with useful user interface, it also supports multiple terminals with splitting screen horizontally or vertically. New features will be added soon. It's very new and experimental project, if you want to contribute just checkout and try.
Archlinux (AUR) (package created by willemw)
Gentoo (package created by Julian Ospald (hasufell))
All bugs Latest bugs reported
Bug #1385145: AttributeError: 'Terminal' object has no attribute 'fork_command_full'
Reported on 2014-10-24
Bug #1277991: split vertical and horizonal inconsistent
Reported on 2014-02-09
Bug #1272707: Terra fails to launch after recent Gnome upgrade
Reported on 2014-01-25
Bug #1247946: [Patch] Add a dbus service method to add a new tab in a specified directory
Reported on 2013-11-04
Bug #1246726: Unresponsible to toggle on under Unity
Reported on 2013-10-31