The iPhone, as we all know it, comes with a multitouch display, but what about folks who wish for the good old days when there was actually a real, physical button to fiddle with? That’s where this clever hack from dsLabs comes in – it relies on the same principles that people use to create capacitive touchscreen-friendly styluses, resulting in a touchscreen-friendly knob which can rotate objects on the iPhone, iPod touch and iPad simply by rotating the knob whenever it is situation on the display. Of course, you can also make one yourself, although don’t expect to get it right the first time round.