The ornamental design for a pendevice, as shown and described.
FIG. 1 is a perspective view of a closed pen device;
FIG. 2 is a front view of the pen device;
FIG. 3 is a back view of the pen device;
FIG. 4 is right side view of the pen device
FIG. 5 is left side view of the pen device;
FIG. 6 is a top view of the pen device;
FIG. 7 is a bottom view of the pen device; and,
FIG. 8 is a perspective view of an open pen device.
The broken lines immediately adjacent the shaded areas represent the bounds of the claim, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.