In this video, Motley Fool analyst Charly Travers discusses what investors need to watch at Nokia (NOK 0.28%). Stephen Elop, Nokia's CEO, recently said that the company needs to speed up development in order to keep up with Apple (AAPL -0.35%), Samsung, and Google (GOOGL 10.22%)

Nokia did a fantastic job with the latest Lumia 920 with an improved operating system and better features. Investors should look out for the next big thing from Nokia this upcoming summer as Elop will focus on faster development in order to compete with Samsung's successor to the Galaxy S III, as well as Google's upcoming device. Nokia needs to beat these competitors in order to attract more consumers to the Windows Mobile OS.