I've got one. It works okay -- the light pattern is a bit small for the screen, it covers it, but, of course, it's dimmer at the edges. The light also throws a lot of light out to the sides, which bothers some folks. Barnes & Noble usually stocks them, if you want to hold one in your hand, but weight really isn't an issue on these lights, they're very, um ... (wait for it) ... light.
