As an added bonus to the free Avatar prop, the prop does carry over to your Windows Phone Gaming Hub.
If you aren't familiar with or downloaded the Sales & Specials app on your Xbox 360 console, finding this section can be a bit of a challenge.
The Definitive Analysis
Improved Web Browser
The best Windows Phone that never was
Windows is for every part of everyone
Is it good?
taking panoramic pictures
Missing the point
Background audio for all!
Is this the one?