NEW FEATURE? Cross-device battery monitoring

I just downloaded a battery monitor app called "Energy monitor" it allows for me to monitor the battery life of other devices including phones, tablets, and smart watches. I love battery guru and it is my favorite battery app, but the fact that I can have a widget and/or a notification that my device is at a low battery percentage is amazing. That would be amazing feature. It would require internet connectivity (obviously) and some sort of account system. But after trying it, it is one of the most useful and wonderful features ever.