The problem is I shouldn't have to pony up cash because Bluetooth le 4.0 is only a more efficient faster blutetooth. Even though 2.1 could handle it just fine it isnt supported. And even if it uses more battery, what if I'm plugged in all the time? Apple could've just given us the option, it would've worked. There is no reason for bluetooth 2.1 devices not being supported except for in the case that the software itself (Yosemite, Ios8) is not supported. Let's say I bought a computer in 2011 with bluetooth 2.1. Then in 2014 the computer manufacturer makes a feature that uses bluetooth 4.0, locking out the feature for all the other computers artificially. That's what Apple has done.