Any non-root method to move app data to a new device?

I'm going to finally replace my good old Nexus One with the Nexus 4. So I'd like to move my app data (espacially game data) to the new device. I know there are apps as Titanium Backup, Datasync etc., but I'd prefer a non-root method. Even though I rooted my N1 and did a lot of custom ROM flashing etc. in the past, I'd rather not root my future devices. I'm just tired of messing with all this stuff.

So, can anyone help me out? I didn't find anything during a Google Play search.