3 mobile views:
- Classic (SP2010, still available in SP2013). Classic doesn’t support HTML 5
- Contemporary (SP2013). works with HTML5 supported devices . Needs to enable Mobile browser view feature for Contemporary
- PC View (“Pinch and Zoom”).
Contemporary is not extensible
Side note: Contemporary view useful to show documents, but no use in the publishing site (and it is not enabled by default). Project server web access doesn't work in contemporary view.
Tip: OTB BI in Excel reporting working well on Mobile:
SharePoint 2013 has 2 main features toward Responsive Design:
Todd's web conference: Creating Internet facing web sites with SharePoint on-premises or in the cloud