I noticed that issue, although it takes two seconds to get it back to work by simply disconnecting and reconnecting the device under bluetooth settings. However some apps are failing to broadcast to my wireless earbuds, I dont know if this is due to iOS 8 or if this has always been the case.
Regardless stop making it sound like it is the end of the world. This kind of bug belongs in Apple's support forum not in the news, like are we really going to start grabbing every bug and make an article out of it? Apple has always had issues with every single update, I just find it funny that all of a sudden it became cool to write on every single possible bug detected.
Whatever, this only means that Apple will react faster to the reported issues unlike Android where you are pretty much left to figure it out on your own when things start to fail.