While I completely agree with OS, the GPL and its enforcement. The question that I ask myself is what impact those lawsuits will have on the OpenSource model.
Will patent trolls become OS Trolls and will OpenSource become Open 'sue us'?
This may be the rise of a new business model...
You're missing the part about how you have to actually *steal code* from a project in order to violate their copyright, whereas a patent violation can be thought up independently without knowledge of the filing. GPL code is not code you can use in any way you see fit, it's code that you can use provided you comply with the license terms.