In the illustrative arrangement of FIGS. 9 and 10, device housings 12A and 12B have angled (outwardly sloped) sidewall surfaces 48 each of which is oriented at a non-zero angle with respect to surface normal n of displays 14A and 14B, respectively. When placed so that sidewall surfaces 48 press against each other and lie in the same plane as shown in FIG. 9, device 10B is supported at a non-zero angle with respect to device 10A. When placed so that sidewall surfaces 48 are not in direct contact, devices 10A and 10B may rest side-by-side in the adjacent device configuration of FIG. 10 (e.g., so that displays 14A and 14B lie in the same plane).