Dual-screens on a cellphone are nothing new: clamshells have had them for years, giving Caller ID and status on the outside, while Samsung even experimented with candybars that had a screen on each side. Verizon’s musicphone for this season, however, the Venus by LG, manages to eke a further new trick out of the dual-screen concept: itself a slider, it has both screens one on top of the other on the same side, the top a standard display while the lower panel is a touchscreen.