AT&T's Mobile Transfer services isn't exactly new but, with several making the move to the AT&T Nokia Lumia 900 from a non-Windows Phone the service might come in handy. Mobile Transfer allows you to transfer contacts, pictures and videos from your old phone to, say, your brand new Nokia Lumia 900.
The service isn't available for every phone AT&T carries and you can find out if your phone is compatible here. The Lumia 900 is the only Windows Phone currently compatible. There is no indication if the HTC Titan II or other Windows Phones will join the Lumia 900 on the compatibility list at this time. However, If your moving to the Lumia 900 from another Windows Phone, your contacts will transfer through your cloud service (Windows Live, Google, etc.).
You just install the Mobile Transfer app on both phones and follow the on-screen prompts. There is a 2gb transfer limit on videos and photos. Contacts do not count against this limit.
Once you've transferred your contacts, pictures and videos to your Lumia 900 then you can sync them with your Windows Live account or Skydrive. You can find more about AT&T's Mobile Transfer here at the Mobile Transfer website.
Thanks, mjhannaf, for the tip!