How do you create a custom WPTouch theme?

I have WPTouch Pro installed and it does a great job at device detection as well as handling most blog posts. However, I want to make a mobile version of a homepage that doesn’t have any blog posts. I know you can edit the css for a theme by making a child theme and editing it. Is this the preferred method to get WPTouch to show more content from the original page?

That link is here:

Also, someone is using shortcodes; not sure if this works for content that WPTouch is already ignoring:

Thanks in advance!

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