Seth,
I just started using Muse, and the usability is amazing. I just took on 2 clients and delivered each a site. Have heard back from one client's developer that the separate css files are a nightmare. My question would be, is there a workaround you can recommend to designers when handing off files?
I sent them a second version. A single html file with the page shell (header, nav, and right column components - basically the Master page) with the other pages arranged underneath. What are your thoughts on this?