I’ve been using Orchard for some time now, as well as some other cms and ecommerce platforms. Since I’m kinda big on SEO, it would be nice to see microformats, and specifically schema.org implemented in Orchard. Not sure if this would be good to do as a module, or if it would be necessary to do at a more core level of the system.
I found a uservoice entry regarding this and voted that it be added, I encourage you do the same if this interests you. see http://orchard.uservoice.com/forums/50435-general/suggestions/998443-support-microformats