The guys at ZooGue decided to try and freeze an iPad to gain a shameless plug for their "amazing free iPhone cases". Well the video is pretty good if you can see past the advertising campaign throughout the video.
I wouldn't recommend throwing your frozen iPad off a stepladder to get it out of the ice...in time the ice will melt you know. The sleep/wake magnets are even functional through the layer of ice, impressive to say the least. Answers the "Will It Freeze" question