Really, are you sure? how about NOT. My cousins old mini had a 15 min battery life and he had a replacement nano, and I said why not test some stuff like that. I first tried with some fridge magnets and seemed of, then I put it near some Altec Lansing (nearly as big as the ones in the picture) and guess what, the hdd started to cling and do weird sounds later on it showed the sad face icon= dead hdd. And, at my family's company in the computer department they keep all the random screws together using a magnet from a speaker, and its powerful.
-Victor
I'm glad the bose companion 2's have magnet shields in them