Hi,
 I am thinking about switching from TMobile to Cingular and found the
good deal on Amazon.  However, in the Amazon Family Plan Lowdown
portion, it mentions:

If you don't already have an account with Cingular Wireless:

  1. Make sure that Cingular Wireless service is available in your
area.
  2. Order a Cingular Wireless phone and individual plan on
Amazon.com. Then order up to three more Cingular Wireless phones
without service through Amazon.com. (Note: To order a phone without
service from Amazon.com, first select the phone and then scroll to the
bottom of the "compatible service plan" page to find the option for
"phone only purchase." You may not qualify for rebates or special
pricing on phones purchased without service plans.)
  3. Once you receive your new phones, call Cingular Wireless at
1-866-CINGULAR to designate your base line as FamilyTalk and add more
lines for your additional handsets.

Does it mean that only one phone will be qualified for rebate?  Anyone
has done this before?  What is the procedure?

And another annoying thing is the number portability.  Cingular seems
to change the way they handle the number portability.  If you want to
change the number, they will void your old contract and start another
contract.  Therefore, the rebate on Amazon will not be eligible after
porting the number.

If I can get a good deal on my family plan, the number portability is
something I can give up.  Anyone knows more about Amazon deal, cingular
family plan and number portability issue?

Thanks