Here’s something that was pointed out by SimsDomination via Twitter.  EA has added their description of what our free registration gifts will be via looking at the site’s source code (see pic).

Download your FREE* Atomic Age themed pet items now! With a variety of new activities and social interactions, take control of your Sims’ pets to discover surprising new ways to play with life!

Here is a pic of said items – thanks to The Simalogue for the image and to SimsVIP for pointing it out