GNOME To Do was added upstream to “GNOME Core” in 3.26. The Ubuntu Desktop Team is happy to announce that it is now installed by default on Ubuntu 18.04 Alpha.
Also new in today’s default install is the Noto Color Emoji font (that’s the default color emoji font in the latest “stock” Android devices like the Google Pixel). Accompanying it, GNOME Characters app has replaced the older Character Map app. This completes the new color emoji feature.
All of these changes are available in today’s daily ISO and the new packages should be installed automatically upon upgrading.
Please give these apps a try and file bugs if you notice any issues. Thanks!