Just noticed something that is good news for iOS users with multiple bluetooth devices… it seems that in iOS 8.3 it now allows more simultaneous bluetooth connections… I successfully managed to connect and use 3 H9's and another bluetooth device on my iPhone 6 and all three H9's on my iPad Air 2…. not done much testing to see if there is any latency introduced … just a little playing about.
previously there was a limit of 2 bluetooth devices connecting to any 64 Bit iOS device … 32 bit Devices seemed to allow 3.