Much more than a grain. I've several posts hereabouts citing and linking to specific documents on these cases. If you're not familiar, Groklaw's pj has been providing easy access to court documents, often with detailed analyses, for quite a while. I'd have to guess that's been on my regular reading list for around a dozen years. If you want a head start on news of legal shenanigans involving tech cases, pj is the one to read.
How would Nokia have fared had they kept their r&d staff and stayed the course with their own smartphone os? We'll never know now, but I feel that we consumers lost a valuable competitor.
I read an article the other day that said that at this point Google and Apple are spending more on legal fees than software r&d. I don't know where they got their numbers, so I don't know if the claim is true, but it's sad if it is.