This is a HUGE game changer, so excited. The number one feature request year over year has been around push notifications. It's a really big pain point for a lot of people in media trying to spam users. They block all of the high bandwith offsite resources they try to shove down peoples throats and the scripts to shut down those scripts. Finally, companies can just trick you into accepting notifications and the problem is solved.
This is great for the acerage user too. Social networks are notorious for making it difficult to engage or get updates about your friends. So this will finally eliminate the friction around realtime relationship status changes and well informed election posts