What Makes This A "Family Edition" Tablet?
The family-friendly aspect of the Xoom Fanil Edition actually comes from Zoodles, which is available for free on any Android tablet.
The program provides access to games, artwork, books, and email in a restrictive interface that parents can control. You can add content in a widget-like manner and track usage, which parents should appreciate.
Artwork is even saved to the cloud. Simply log in to Zoodles.com to see everything.
Preventing access to Android outside of this sandbox requires enabling the child lock. When it's enabled, pressing the operating system's home and back buttons does nothing. We don't believe the child is very secure, though. Overriding it is a simple matter of double-tapping the back button and drawing a "Z" on the screen. Older children, the ones you're probably most worried about, will get around that in a heartbeat. The lock should probably be pin- or password-based instead.
There are many features of Zoodles that are only available with a Premium subscription. However, buying a Xoom Family Edition doesn't get you any sort of discount on that. So, in the end, "Kid Mode" on Motorola's newest tablet doesn't really amount to anything special. You can get the same functionality on any Android-based tablet.