FIG. 1 is a front view of a mobile computing device showing my new design;

FIG. 2 is a leftward side view thereof;

FIG. 3 is a rightward side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines in the drawings indicate unclaimed portions of the mobile computing device and form no part of the claimed design.

The dash-dot-dot broken lines which define the bounds of the claimed design form no part thereof.