Right now we "officially" support Keo Power Bluetooth - though our Power implementation follows standard Bluetooth Smart specification for power data. The target is to improve compatibility for third party sensors and PM's in the upcoming releases.. Two parts to this.. 1) We have internal work to do - we'll absolutely try to bend and adapt to key power meters.. We want that compatibility.. 2) we're also having open dialog with other brands to improve their implementation of the profile to ensure things are close to being on spec. FWIW we actually co-chair the Sports & Fitness working group at Bluetooth SIG.