My Pentax Optio W20 is now at the bottom of the ocean somewhere off Kite Beach. So I replaced it with the w30. When filming with the camera mounted on a kite - 2 changes to note : SET the focus on 'infinity' - the default autofocus will lock in on a shorter distance when launching and the video will end up fuzzy if you don't. Separately, if trying stunts, the centrifugal force on the camera (if its in a case) will power off the camera unless you protect the shutter button (see picture).
Here are some kite loops filmed with the w30. video's clear compared to my pentax video of Las Terrenas below filmed on autofocus.