Arduino board with built-in Bluetooth I would like to find an Arduino with built-in Bluetooth. 
I know about the HC-06, the shields and the other Bluetooth modules, but i would like to have built in Bluetooth for eliminating the risk for miscommunication on the serial port. 

The official Arduino foundation did produce an board but it's retired now.
There is this board called Bluno
Its an Arduino UNO Based board with built in Bluetooth 4.0

Bluno - An Arduino Bluetooth 4.0 (BLE) Board