Prosecution of Open Source IP violations (Score 3, Interesting)

How to do you view IP violations of commercial companies who are abusing the GPL and other Open Source licenses (eg. bundling binary only software that incorporates Open Source in violation of the license)? Would these be investigated to the same extend as violations of similar scope that involved proprietary code?

I'm asking this because Federal prosecutions often have monetary thresholds attached to them, but this is hard to define in the case of Open Source...

Thx.

Chris.