Sorry to hijack your post angel_16_786429569, but I have a similar question. I have bought PowerStore4.5 and I have been asked to make a mobile version of the store.
Basically, I will be creating CSS that changes the look of the site. For all intents and purposes, the store will be the same apart from being optimised for mobile... is this going to work?
If it's not going to work, then I will create a mobile version of the site using eCart, Datassist, SecurityAssist etc, so the same question as angel's applies; is there anything specific that I need to do other than change the CSS to suit a mobile?