Media companies are trying desperately to figure out how to balance the needs of their print readers with the shifting demands of a real-time news universe in which they no longer own the platform. The Postmedia chain in Canada is trying to move beyond that with the launch of a “reimagined” version of its flagship Ottawa title, an attempt to rethink not just print and digital but what a mobile app is (or should be) and how people consume content now in a multi-platform world.