I could be wrong, and way off base on this one, but I would think twice before
tossing my landline for a fido based totally on the health concerns from using
cellular telephones. The jury is still out on this one. There are many
scientists that claim that extended use of wireless phones cause brain tumours.
Note that I said wireless, and not just cellular. Yup I am throwing the cordless
900, 2.4GHz and 5.6GHz home phones into this pile too.

Naturally every time a doctor or scientist goes on the record and says that they
have scientific data that links cancer to exposure to rf energy due to the
heating effect caused in the brain, some other industry sponcered scientist
rebuts the claim. Getting industry funded research is like getting the fox to
guard the hen house.  IMHO.
Now for a little personal insite on this. My cousin recently died of a brain
tumour. She was 50 years old, and the tumour was discovered after she bumped her
head and blacked out. (a routine CT scan was done) The tumour was formed
directly over her left ear. The exact spot that the antenna from her cellular
phone would have been.  She had been a heavy cell phone (and cordless phone)
user, Did not smoke, and did not drink, and lead what many would consider an
extremely healthy lifestyle. Her doctors told her that they highly suspected
that the cause of her tumour was exposure to radio energy from her cellular
phone.

Now that Fido is convincing many to dump their line lines, and go exclusively
wireless, with unlimited talk time, my fear is that we are going to see a big
jump in the cases of fatal brain tumours. Do I own a cell phone? Yes. Do I use
it? Yes as a matter of fact I do. But I do not use it as my primary phone, nor
do I own a cordless phone. The majority of the time I am using a corded phone.
The only time I use the cell phone is when I am on the road, and that averages
perhaps 5 minutes a day, so I am not too worried about my exposure, but I
certainly wouldn't be using wireless exclusively.
I warned my cousin 10 years ago about having 2 cell phones permamantly glued to
her ear, and unfortunately it fell on deaf ears.