I think Intel may have a legitimate claim about a breach of contract with AMD transferring the license to a different company (versus a subsidiary), but the legal ramifications of the revocation of that license may lead to significantly more questionable legal issues (such as if Intel would be considered a monopoly).
Overall, I think this demonstrates how broken our patent system is. I'm going to draw on a non-computer example that I just learned about. Did you know that agribusinesses can patent genetically modified organisms? Sure you did. Did you know that any plant that gets their genetic code is considered theirs in terms of collecting license fees, regardless of how that gene was introduced? That means if seeds are wind blown, accidentally spilled, or intentionally planted on a farmers property who didn't pay the licensing, the agribusinesses have the right to sue for use of unlicensed seeds. Even if the gene is introduced by cross-pollination without the farmer's knowledge, it is a violation - and entire historical seed banks maintained by farmers become the property of the agribusiness.
Lets go a step further - did you know that they are starting to allow existing organisms that are not genetically modified to be patented? In other words, you may wake up tomorrow and find that you have no rights to the seeds of the plants in your garden and you may be sued for illegal use of a product that is patented.
My point is this - the patent system has been corrupted and perverted. When people or companies can patent systems for tax savings based on the laws that are available to the public, there is something seriously wrong. When people or companies can take away your right to harvesting seeds and reusing them on a family farm, there is something seriously wrong. When people or companies can create patents for devices they have no intent to manufacture but will force existing devices to infringe on the patent, there is something seriously wrong.
What is the right system? I don't know - that is something we need to discuss on a societal level. How do we help the inventors of new ideas enjoy the benefits of their developments (or help companies recoup the cost of research and development) while preventing absurd legal situations that will only damage the development of society as a whole? In the United States, I don't think there will be a good answer developed until the citizenry starts educating itself, communicating openly, and fulfilling their civic duties.