Swiping gestures are supported on most modern phones today. And when they're not, you can gracefully fall back to touch events. And when those aren't supported,

Swiping gestures are supported on most modern phones today. And when they're not, you can gracefully fall back to touch events. And when those aren't supported, you could gracefully fall back to a list, rather than a slideshow. There are methods by which everybody gets to play along, and as long as those are implemented properly, nobody is left out.