The demo of Ninja Theory's Devil May Cry reboot is now up on Xbox Live for Gold members. PS3 owners have to wait until later today for it to arrive on PSN, unless they're in Europe in which case they'll have to sit on their hands until tomorrow*.
There are two missions in the demo, one of which features a (probably ridiculous) boss battle. One completion of the demo makes the Son of Sparda difficulty available. The full game roars onto Xbox 360 and PS3 on January 15, 2013, and PC at a later date.
*Or bide the time however they choose, we're not picky