JQM on Opera 10 / HTC Touch Diamond 2 / Win Mobile 6.5

JQM on Opera 10 / HTC Touch Diamond 2 / Win Mobile 6.5

Hi, browsing the JQM-Demopages with Opera 10 on a HTC Touch Diamond 2 (Win Mobile 6.5) I have to scroll in horizontal direction on each page. Apparently the width breakpoints do not fit to that device. Does anyone know how to make JQM-Pages really usable on this (and similar) devices? Thanks for your help!