One Page Checkout was implemented on sites which use Right To Left logic on both OPC on Virtuemart 1.1.x and OPC2 on Virtuemart 2.0.x. These are the latest css3 mobile ready RTL screenshots from OPC2 for Virtuemart 2.
Unlogged default view (opc2 for vm2 pbv)
Unlogged mobile view
Logged in default view