I went for a swim in a pool with my Lily on. Afterward, no amount of gesturing would turn the screen on - even after I changed the setting to sensitive. it was even hard to turn the display on manually (by pushing the home button). After a day or so, it started working again. Now I'm hesitant to let the Lily get wet. I shouldn't have to worry about that, given that it is advertised to be "swim-rated, making it perfect for a swim, shower or spa day."