Mobile developers believe that a mobile-first social media startup could disrupt Facebook's dominance. They also predict that by 2015 they will be building apps for more devices beyond smartphones and tablets, such as TVs and connected cars. Developers expressed dissatisfaction with HTML5 for mobile apps due to issues with performance, security, and fragmentation. Apple continues to be the most popular platform for developers, while interest in Android development declined again. Developers are optimistic but cautious about Windows 8's potential due to Microsoft's past performance and the difficulty of the task.