Zagg is horrible on touch screen devices. If you just want to protect the back then it's OK, but there are better options out there. If you want to use one of these skins on the screen then I would recommend Phantomskinz, and have also heard good things about Ghost Armor and Wrapsol. Phantomskinz is similar to Zagg, but they add a clear coat that gives it a much smoother feel, where Zagg has a much tackier feel and takes away from the touch screen experience.