i was looking into helping a customer with her address book. Man, they have changed the address book feature to another level. T-Mobile should push it more and sell more devices that are compatible. Initially you would think this feature is a static extra but it's a full blown feature. It changes your MyT-Mobile account with a new section and has a live online address book that you can modify, store or change via the site and synch with your phone.
Great feature, check out
https://support.t-mobile.com/knowba...ic/tm23387.htm? for more information on the web site aspect.
Only thing is you need to have a phone that will support this feature. You can find more about at
https://support.t-mobile.com/knowbas...c/tm23389.htm?
"Other supported phones"
Currently, the Nokia 6600, Nokia 5300, Nokia 6133, and the Nokia 3220 are the only other phones sold by T-Mobile that support SyncML DS.
To use the Address Book feature on the Nokia 6600, Nokia 5300, Nokia 6133, or the Nokia 3220, the phone must first be configured. If you wish to use T-Mobile Address Book on any of these phones, click the appropriate link below to learn how to configure it..."