EA has released a playable demo for SSX on the.
It can be downloaded for free with a Gold account, but you'll need 1.24GB of space to install it.
"Defy reality and own the planet by jumping into the boots of the classic SSX character Zoe Payne to complete a tutorial run in the Rockies, then experience reality-defying gameplay through Race it, and Trick it events. In this online enabled demo, compete against your friends on your own schedule by uploading ghosts of your best runs to the SSX servers in Explore mode. Feeling lonely on the mountain? Don’t forget to send the demo invite to a friend to unlock SSX trickster Mac Fraser."
SSX will be released for PlayStation 3 and Xbox 360 on 2nd March in Europe and 28th February in the US.