I keep my fob and my cell phone in my purse. After getting the letter I made sure they were on opposite sides of my purse... not a huge distance... but so far no problems.

My husband was carrying his fob in the same pocket he attached his cell phone to... they pretty much touched... and he didn't have any problem. He has a Nextel... so maybe this problem is cell phone type specific. After getting the letter he put his fob in the other pocket.

We are both getting I-Phones this week... so I am a little concerned with keeping my fob away from the I-Phone. (BTW... it any of you haven't seen it yet... the I-Phone is a dream come true. I am completly not technology savvy... and it is so intuitive a person like me can pick it up and use it immediately. My husband travels a lot on business... and this saves him from having to carry a laptop. It is actually making me think seriously about investing in Apple stock this year. I think the I-Phone will be a HUGE seller.)