Following on from the previous post as promised I have updated the Metro UI Masterpage (Farm Solution Only) to include the Click Accordion functionality. You are now able to configure on a SPWeb basis if you want to use the Hover or Click Accordion. If you find any problems please let me know ASAP and i will fix them. Simply upgrade your existing solution and that will give you a new js file and updated controls.
Once again thanks for all your feedback and comments. I am in the process of coming up with a way to bring the enhancements to the Sandbox editions which will please many of you.