Google was sued this past week for $2B by Oracle for patent infringement on the Oracle JAVA patents. How much would just ONE key patent on some basic JAVA technology be worth to Google? I would estimate it would be worth more than $2B since they could avoid the cost of litigation and the threat of a $2B decision.
Companies sign cross licensing agreements to avoid mutual self-destruction through lawsuit.
Intel is "light" in the telecommunications patents. These patents would be a nuclear deterrent against patent infringement lawsuits. Google is very shallow in the patent area and will be agreessive. Apple has much bucks and will be agressive.