I see a new AT&T app in the Windows phone marketplace, possibly lined to the timing of a certain hero phone:
Upgrading to a new AT&T phone? AT&T Mobile Transfer migrates contacts, photos to and from select AT&T wireless phones. AT&T is offering this application as a free service for any AT&T wireless subscriber.
Customers upgrading their phones can transfer up to 2GB of photos using this wireless service. While this can be done over any data network, AT&T recommends using Wi-Fi for doing the migration. Data network charges may apply for 2G, 3G or 4G usage.
Here’s the link but it will only work if you’re an AT&T subscriber. It’s not yet active under the AT&T Features tab in marketplace and their website doesn’t list WP as a supported OS. And notably missing are videos since you can’t sync them as the OS doesn’t support it (that hurts every time I think about it).