Future bot nets will likely move to peer-to-peer communications, which are harder to intercept and shut down, Holz said. Moreover, there is a trend toward smaller numbers of bots in each network--a measure that makes the collection of compromised computers that much harder to detect, he said. While a network of 3,000 to 8,000 computers is harder to detect than one of 20,000, it can be as damaging, he added.
There has already been p2p based botnets for many, many, many, many years now. Its just that no one took notice to it intil one thousand Agobot variants later and this guy says the above. Good god, what a dick-head.