I had to look this up, because I couldn't figure out how iodine could act as a magical anti-radiation pill. Here's what I found:

The thyroid likes to collect and store iodine, it's like a little iodine bank.

Radioactive iodine is produced by fission, and is what would be released into the air by the power plants that are failing in Japan.

The thyroid can only hold so much iodine, and after it has been saturated, any extra is removed through urine.

So, basically, iodine pills keep the thyroid full of non-radioactive iodine, so any radioactive iodine is removed from the body as quickly as possible, rather than being stored.

Science!

I'm not entirely convinced of the health risks that people claim cell phones pose. Like everything else, I think there's a bias by the groups reporting negative findings and a tendency to exaggerate. That being said, I still don't think my body really expects to have a radio transceiver broadcasting all day from my pocket.

Lately, I've changed my habit from walking around all day with a phone in my pocket to only carrying it when I'm on the move. If I'm at work it now sits on my desk (plugged in and maintaining a full charge on my employer's dime). If I'm at home it sits in my room plugged in. When I'm driving it tends to be put in my cup-holder (once again plugged in and charging).

Changing my phone habits has two main effects: 1) keeping my battery almost constantly at a full charge and 2) reducing the physical contact with my phone from probably 10-12 hours per day to an average of maybe 2 hours per day. Some may say that 2 hours a day is still too much, but it's still a time reduction of about 80%. And to me, that seems like a good thing.