So for this to work you will need access to a device like the iPad or iPhone 4. So in this case I got free tracking on my moms 3G. How? On my iPad I done a add new account with her AppleID Credentials. Then it said account verified. Turn on the mobileME tracking. If you get a warning like this interferes with your MobileME subscription blah blah blah just cancel. Get out of it. Do the 4.2 update with the latest findmyiphone version on your 3G or what ever older hardware you have. Then on the 3G just add a new account and enter the credentials and bang, free Tracking on a 3G