Sitecore: using MVC areas

Sitecore out of the box will not provide MVC ares support but you will really need this functionality for good solution organization. However, Sitecore has good pipelines system and you could plug you code that will resolve areas.

Sitecore: MVC fallback device

Implementation of layout fallback device in Sitecore MVC

Sometimes when you creating mobile versions of a site, you could decide to show some page from desktop version and do not create mobile layout for them (e.g. they are less important than other pages or not visited frequently). Sitecore has setting for that called Fallback Device. However, when you are working with MVC layout it is not really working. Nice moment over here is that it is really easy to enable it.