Who's up for trying that with their own camera? ;)
I personally take my SLR on hikes with me, a 33+ miler over 3 days in Pt. Reyes National Seashore, a 20 miler in Henry Coe State Park, Garibaldi/Black Tusk, Helm Creek to Black Tusk from the Cheakamus side at Function Junction, Cheakamus Lake, Wedgemount Lake last weekend, etc.
All hikes made with a 40-45lb pack on. The only hike I've been "concerned" with the well-being of my camera was the 33+ miler in Pt. Reyes as it was ~12C and foggy/low cloud/misting the entire time. I just wrapped a bandana around my camera.
Other than that, it's always slung around my neck/shoulder, so as to avoid swinging while still being ready for the random shots I might want to take, or when something random dashes out of the brush and I only have a split second to pop my lens cap off and shoot from the hip, hoping to catch it.
Example: Hoary Marmot just before the terminal moraine at Wedgemount Lake.
http://farm5.static.flickr.com/4095/...556bf843_o.jpg