[$] Sxmo: a text-centric mobile user interface

Sxmo, short for 'Simple X Mobile', is described on its web site as 'a
minimalist environment for Linux mobile devices'; it offers a menu-driven
interface that is controlled with the phone's hardware buttons. Sxmo enables the user
to send SMS messages from a text editor and is entirely customizable with
shell scripts. This peculiar mobile user interface significantly differs
from the prevailing approach—but it works.