I found this little guy while looking for parts on Mouser the other day:
It's a $6.50 certified BLE module from ACKme Networks based on a Broadcom ARM
Cortex-M3 SoC! The module breaks out the ADC, USART,
SPI, I2C, PWM and GPIOs and ships with a pre-loaded firmware called TruConnect that lets you control the module via the serial port.
They also have a dev board, with switches, buzzer, RGB LED, accelerometer, switching...
