Given the small form factor of mobile devices, gestures
used on table surfaces may not directly translate onto
mobile devices. In a survey,
Karlson, Bederson and
Contreras-Vidal [10] found a preference for both holding
and operating mobile devices with the same hand instead of
holding the mobile device in one hand and touching the
screen with the other.
This preference arose from the need
to carry items or interact with the physical environment
(e.g. open a door).