Punchcut has published a set of guidelines for the design of distributed / multi-device experiences:
1. Understand the digital ecosystem, its organisms and relationships
2. Focus on distribution, not duplication
3. Adapt experience touch-points to each context
4. Embrace the concept of services, not applications
5. Establish frameworks to provide flexibility
6. Take the time to get the details right
7. Seek to evolve and enhance relationships
Link: Multiplicity has become the norm, not the exception. So why would we design as though one-size-fits-all? (punchcut.com)

