Using Spring, you can write code that can be easily tested and in this sense it is the best choice for test driven projects. Many java developers use spring framework because they see it's features as an alternative to the Enterprise JavaBean model. Spring eliminates the need to use different custom properties file formats, by providing for a consistent way to handle configuration throughout applications and projects. Spring encourages good programming practices by reducing the cost of programming to interfaces, instead of classes, almost to zero. Although, pretty cool designing has become one of the most important aspects in the overall success of a mobile phone.