As we would fully expect from a new flagship release from Samsung, the Galaxy S4 has not only added a bunch of new and impressive hardware to the fray, but also a hatful of intriguing software features bound to make our life that tad bit easier. During the announcement of the device a couple of weeks back, the company made much of the Dual Shot feature, which allows both front and rear-facing cameras to operate simultaneously to capture images or video. Such a feature is useful, for example, if you want to capture your environment as well as your reaction to it, and although this feature is exclusive to Galaxy S4 users for the time being, it hasn’t taken long for a similar offering to reach the iTunes App Store.