Google's Cloud Messaging is no longer just for sending alerts to Android devices or your web browser. The internet giant has announced that the service now pushes notifications to iOS devices as well -- your favorite app can deliver updates to all your gadgets using a single system. The Cloud Messaging update also introduces topics, so an app can ask you about getting only the notifications you care about. A news app can send you notifications about tech and world news, for instance, while skipping entertainment. These features will take a while to filter down to the software you use, but they promise to both keep your hardware in harmony and cut back on some noise.
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