If you read ArsTechnica's recent article where they had two lawyers peruse through the filings and patents in question it's not a simple case of patent trolling. In fact Nokia isn't even asking the court to stop production and sales of the iPhone or for Nokia to get a royalty per iPhone sold. All they're asking is that Apple licenses the patents properly and pay Nokia the licensing fees they owe. So it'll depend on if the company Apple bought their hardware from had an appropriate license from Nokia.