UPDATE 12PM MST:
Brian Krebs of Security Fix @ the Washinton Post says it's possible RBN may relocate servers to China.
Well at Trend Labs is reporting that IPs related to RBN are no longer resolving. This could be one of two things, either they have been shut down, or they are re-configuring.
Wanna guess where I'm putting my money? Wait...there's more!!