Source: http://canonfieldreviews.com/7d-1-weather-sealing/
Compared To: The Pentax K-7 Brochure
Update: Thanks to David, I have just discovered these K-7 showcase photos!
But unlike the above 7D show, it still lacks a photo *produced* by the K-7 (but not photos of the camera) under that adverse condition. Might be that K-7 had already died? ;-D Lol..
Btw, I think that snowy and windy environment of the 7D case is more severe, as it did not only require weather sealing, but also cold resistance.