Calvin Carter discusses his observations from Mobile World Congress 2015, noting several key trends:
1. Security was a major focus, with many companies showcasing new security and malware protection features for both hardware and software platforms.
2. Video content was prominently featured, even within non-video apps, showing how important video has become for generating ad revenue.
3. Notifications continue to be a critical area of focus, with companies innovating in push notifications, messaging across channels, and analytics for tracking notification strategies.
4. Emerging technologies like augmented reality, virtual reality and beacons are still in early stages but showed promise, though widespread adoption may be a few years off.