Responsive design is the standard approach for cross-platform development. But, that philosophy only addresses dimensional layout properties. Google wants to standardize the actual interaction properties for its Android-based experiences.
Google unveiled a cross-platform design language at the Google I/O 2014 conference this week. They call it “Material Design”. It is an attempt to bring structure, rationale, consistency and a universal look and feel to user experiences on all devices including mobile, desktop and Google Glass.