The full list via the @dbacks Twitter feed.
Arizona Diamondbacks (@Dbacks) March 14, 2013
Optioned to Double-A Mobile: RHP Keon Broxton, RHP Eric Smith, RHP Zeke Spruill— Arizona Diamondbacks (@Dbacks) March 14, 2013
Reassigned to Minor League camp: INF Chris Owings, RHP Bo Schultz— Arizona Diamondbacks (@Dbacks) March 14, 2013
Josh Booty, winner of MLB Network's "The Next Knuckler", was indeed given "a chance" to pitch in a real game. He pitched in a B-squad game against the Giants last Sunday morning. He faced six batters and allowed two runs in his outing.
Other notables on the list are Nick Ahmed, who was filling quite well in for Aaron Hill while he was ill; Charles Brewer, who had a very outside chance at a starter's spot and certainly impressed; and infield prospect Chris Owings, seen as the only other decent shortstop prospect not named Didi Gregorius.