The ornamental design for a featurephone, as shown and described.
FIG. 1 is a perspective view of the invention from the front left side.
FIG. 2 is a perspective view from the rear right side thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left elevation view thereof.
FIG. 6 is a right elevation view thereof.
FIG. 7 is a top elevation view thereof; and,
FIG. 8 is a bottom elevation view thereof.
The broken lines that are immediately adjacent to claimed surfaces and define unshaded regions, represent the bounds of the claimed design. The broken lines and the non-shaded regions within the broken lines form no part of the claimed design.