Yup, I have cfls all over the house and have never seen them interfere with anything. By contrast, cheap dimmers and especially "touchpad" dimmers can wreck havoc, especially with a.m.

I've not heard of high tension powerlines ruining handheld electronics before but know of cyclists who've been "zapped" when riding carbon-fiber framed bikes beneath them. I don't really know what's at work there--perhaps some sort of inductive charge builds up in the bike and arcs to the cyclist?

Since a lot of urban and rural paths follow high-tension lines it's something to watch for I suppose.

Cheers,