Mobile World Congress 2015 provided several key insights and trends for brands:
1) 5G networks will enable unprecedented connectivity and speeds, unlocking new technological capabilities and use cases like autonomous vehicles.
2) As the Internet of Things expands, brands must navigate how to participate without being "too smart" and how different connected services will prioritize users' data and attention.
3) Emerging technologies like digital identities, virtual and augmented reality, and predictive analytics will transform how brands engage with and understand consumers.