Nah, but they’re both forms of intellectual property.
In this case, it seems like they decided Zynga was infringing on patent US7072849B1. They managed to convince the court that Zynga’s advertising methods were too similar to what was described in that patent. Which is bullshit, as software patents shouldn’t exist, but oh well.
Google’s maps are decent and can also be downloaded to be offline…? But yeah, it seems like it’s a nice alternative, especially if you want to be free from Google’s grips.