I have see a couple of news report saying you can sync over wifi using 4.3. I know I can stream from my Mac to the iPhone but can I do a full sync without a cord? I can't take a chance with jailbreak since I need the phone for work.
I doubt this, there's now access to homesharing libraries on iOS 4.3 devices. I didn't hear anything about syncing over Wifi and that would have been a huge announcement.