Unlike Shane, I really liked my W30. Until I broke the LCD display that is. It still works, but has been replaced with a new W80. So far I really like it too. Have not dunked it yet though.
I thought Shane had the W60, but never understood his issues. Everyone, with him the exception, that I've talked too about the Pentax W-series cameras, has loved them. Excellent macro, and now super macro, good underwater use. The only issues are taking low light shots. They really like sunlight outdoors shots, especially when fish are around. Grainy night pics though, and indoors shots too sometimes.
All of the reviews I've read have placed the Pentax and Olympus cameras at the top of the waterproof game.
Not sure about the video as I do not use that function often. It does shoot HD video though, if I recall correctly.
OK, I checked the video, and yes, you can zoom in and out while recording.