MediaLink Bluetooth USB Adapter - Version 4.0 Class 2 Smart Ready (MUA-BA3) and A2109

[ardentblue]

Installed MediaLink MUA-BA3 (based on BCM2070) on my notebook, and my A2109 saw it and paired with it. But that is as far as it goes.
Support - Wireless Networking - Mediabridge Products

Hmm, from the http://www.lenovo.com/psref/pdf/itbook.pdf
11b/g/n wireless Broadcom BCM4330 combo chip, Supports Wi-Fi and Bluetooth
802.11a/b/g/n MAC/Baseband/Radio with Integrated Bluetooth 4.0+HS & FM Transceiver
http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM4330

GPS (Global Positioning System), Broadcom BCM47511
Providing dual constellation support for GPS and GLONASS
http://www.broadcom.com/products/GPS/GPS-Silicon-Solutions/BCM47511

Perhaps 4.2 will fix Bluetooth.
Blue Creation - Android 4.2 integrates Broadcom Bluedroid stack!
Headworx: iWatch 2.0: Why It Has Not Happened (Yet)
"The likely date for the announcement of the BLE support in Android is the Google I/O conference, which is scheduled for May 13th, 2013. And then there will be the wait for the latest Android to filter down to the devices."

Open Bluetooth Low Energy SDK for Android
broadcom-ble - Open Bluetooth Low Energy SDK for Android - Google Project Hosting

Lenovo, where fort art thou?