there are always attacks, but they are illegal & you will get caught. I don't know why people here keep bringing up ILLEGAL ways to combat sony.
Here is a thought, contact a lawyer & explain to them what is happening to Geohot, then tell them that you are a dev & would like to seek legal coucil & or protection from anything like that happening to you.
Plain & simple, if you own a piece of HW, it is your right to do with it as you please. Some people tend to forget about all the cases that were fought & lost by Comcast & Verizon here in the states. Due to the "CAP" on bandwith being set on the router. If you rent a comcast or verizon router, & modify it, it is illegal.
BUT if you buy a compatible one with thier network & mod it, or you buy it premodded, then you are in the clear, thus one of the reasons both compaines are trying to figure out a way to "cap" people from the central hub & not on the devices in peoples homes