I think it well be very useful for us (customers) if you add a possibility to send notifications about repository changes using Safari push notifications (so they would be able to appear in notification centre on OS X). I'm pretty sure you know about this, but here is a related page: https://developer.apple.com/notifications/safari-push-notifications/
I really need to know when my repo was changed by other members of my team, so I subscribed to Bitbucket notifications. And now I have full inbox of them. I don't need to have an email. I just want to be notified that the repo was changed.
It would be awesome, if you can implement this.
Thank you in advance, Dan Pristupov