For me, I think that this is one of the best things that these people will do as long as competing with the rest of the other phone manufacturers are concerned. If you check around, you will see that the world is now being dominated by the makers of Android phones. I mean that even with the high price of other type of phones such as iPhone, Android mobile phones are still at the top when it comes to purchases.
So, for the developers of iPhone thinking of bringing a nice app that will assist iPhone users on the way to check out their batteries, you get to see that it will help them to make future plans when they notice that their batteries are going down. IPhone accessories are not always that easy to access, so this is an awesome move by the makers of iPhones.