At first glance, I am a little disappointed as the light looks a little awkward to use. The periscope light got some good press for their regular book covers but it looks like it doesn't support one-handed reading. I will wait and see what others have to say once these are out and perhaps wait for Lightwedge to come out with for a cover (supposedly in the works but still sounds far off).
A built in light was big on my wishlist and just when i had convinced myself it didn't matter, I had two incidents this week where I had time to kill and wanted to read but couldn't because of poor lighting