Mass Effect 3 and Kingdoms of Amalur: Reckoning.

Found this on Joystiq

The demos for Kingdoms of Amalur: Reckoning and Mass Effect 3 will each unlock in-game items for the other game.

Playing the Kingdoms of Amalur: Reckoning demo, available January 17, will unlock two items in Mass Effect 3 when the galactic space opera launches March 6. Shepard will be able to don the close-quarters combat focused Reckoner Knight Armor (pictured below) and wield the Chakram Launcher, which features explosive ammunition discs.


The Mass Effect 3 demo, which should be available sometime this month, will also unlock a piece of armor and a weapon for Reckoning on February 7. The ME items include Shepard's N7 Armor, with all the trimmings (helm, cuirass, gauntlets, chausses and greaves), and omniblade daggers for stabbing.

No word yet if Reckoning will feature the ability to sleazily declare multiple shops in Amalur as your favorite for deep discounts.

Looks like I'll be d/loading the Kingdoms demo on the 17th!!!