Kube is a touch-friendly email app based on KDE technologies, read more on:
* https://cmollekopf.wordpress.com/2016/01/23/the-year-of-kube/
* https://mbohlender.wordpress.com/2015/12/18/a-little-kube-says-hi/
Jens and Thomas are working closely with Christian Mollekopf and Michael Bohlender on this.