Samsung has always responded with falling market share by releasing a new device. And considering that the Galaxy S4 is doing so badly, it is not inconceivable that Samsung will rush the release of the upcoming Galaxy S5 to ensure that they don’t lose momentum – something that Samsung has always had and in fact, momentum is the only reason that the Galaxy S4 did so well in the first place, it relied on the sales momentum built up by devices like the Galaxy S2, S3, Galaxy Note and Galaxy Note 2.