It seems either http://dev.w3.org/geo/api/spec-source-orientation.html or https://dvcs.w3.org/hg/screen-orientation/raw-file/tip/Overview.html needs to define and standardize the proprietary window.orientation feature because not having it defined is a problem: https://bugzilla.mozilla.org/show_bug.cgi?id=920342
As an aside, any chance we could have those two drafts be a single draft covering that whole spectrum? -- http://annevankesteren.nl/
