Over at www.minorleagueball.com they have their daily recap of minor league action (something that would be a great regular addition to this site) and somebody posted this about ZVR's start yesterday. I haven't seen much of the way of a 2011 scouting report on him so far and this isn't much of a scouting report, but it's something.
SB Nation Braves editor supposedly saw him:
“Wasn’t impressed with Von Rosenberg’s stuff. Fastball flat and up, 85-89. Change and curve were decent but no out pitch, curve was up. Delivery is smooth and easy, but I just don’t see a ton of projection in the stuff.”