Office 365 SharePoint 2013 - Design Manager - Convert HTML to Masterpage

Some of the SharePoint MVPs already blogs about a new function of SharePoint 13. This functions called Design Manager and makes it possible to convert an html page to an masterpage.

The preferred tool to create a branding SharePoint site is not anymore SharePoint Designer. You can create your pages with the more common used programs UX designers use. You can create an html pages by your UX designer en convert it to an masterpage.

Office 365 Developers Preview

After a quick read of Jan Tielens his blog about `Dipping Your Toes in the SharePoint 2013 and Office 2013 Preview Goodness` i decided to create an Office 365 Developers preview.
You get a nice environment with some different sites.