The honeymoon for buzzy startups doesn't last forever. At some point, they have to evolve - iterate in the new economy vernacular - and develop new products and services to grow their user base. Here's one New York-based business with something new to offer: What's the news: New York-based startup Dextro launched a more advanced video analysis platform, which it dubbed "Sight Sound and Motion" (SSM). How it works: The SoHo-based developer of data analytics technologies claims that the...