The Pier-JQueryMobile-Core package, along with the attached 3 changesets
(which override Pier/Magritte methods), need to be installed. Then run:
PRJQueryMobileDistribution new register
It's unfortunate that the changesets are needed. Maybe someone has a
better way.
Also attached are two screen shots of what you should see. You should
have a default jQueryMobile UI for Pier.