Add Bluetooth LE (Low Energy) software support to the tablet in order to be able to connect wearables and other gadgets. There is an existing request for the phone, but there is currently no API to make use of it. There are currently APIs that could work on SailfishOS, but there is no official support by Jolla.
For more infos about Bluetooth LE see wikipedia .
EDIT 2015-12-15 by c.la: this topic will be discussed on Dec, 17th Jolla Community meeting. If you plan to attend please edit the post and add your name in the list of substitutes in case I can't show up (50% chance atm)