One error in my post was $150 - $200 million is not per year but a total over 5 years.
Kevin Porter has a source that a GLOBAL license for ZTE would be in the neighborhood of $500 - $650 million for 5 years. I do not believe ZTE will settle country specific agreements but the whole enchilada. My point of not pushing for $500 million (mucho greedy) is based on the global settlement over a span of 5 years. It makes more sense for Vringo to finalize a reasonable settlement (30% of what is asked for now) with ZTE and use it as a hammer over the other infringing companies.
One strategy a former employer of mine had was to get some settlements first with smaller companies, then use that legal track record to hammer the larger ones. It worked.