i believe most people still using pc to manage wordpress admin in most situation.
because pc is a perfect tool for creating and producing content.
however ipad or android pad are more and more popular because they are cool and convenient for consuming content...reading etc.
so, to wordpress site owners, supporting touch screen better on front end, is more urgent and necessary than the back end admin.
Pls consider to features to make front end dragable, espeacially swipe left or right to jump to next page or slides.