I found few quickly closed issues in github history, anyway:
Adding TouchPunch does not work, even your demo page here:
http://troolee.github.io/gridstack.js/
which has added TouchPunch lib does not work on any of my touch devices (not in one column mode).

Why you not prepare one single demo for touch devices? (there is no working demo online)
I spend many hours of trying (and reading your touch manual) and it still not work.

(my try is here http://hhh.imasik.cz)
Thx for your time