The tangle of patent litigation between two of the world’s top tech companies appears to have just straightened out: Apple and Google’s Motorola Mobility have agreed to stop suing each other over smartphone technology and “work together in some areas of patent reform,” Reuters reported Friday.

It’s not clear what that means precisely, other than putting a kibosh on all existing lawsuits between the iPhone maker and Android company. That would effectively end roughly 20 cases in the United States and Germany, said a Gigaom source “familiar with the litigation.” Patent lawsuits between Apple and Samsung don’t appear to be affected or influenced by the agreement.

Image by Flickr user Brian Turner