Mobile application fads are always changing. It seems that popular app trends develop as quickly as fashion ones, and it is difficult to know which will become the next greatest hit. However, if you are able to synchronize strong app development and a clear and concise marketing message, you could see some noteworthy results. That seems to be the case with 2014′s biggest app craze to date: Flappy Bird, a simple game created and developed by Dong Nguyen, a Vietnamese video game developer, who never intended the app to be such a success.