This issue needs help from Motorola. We will raise this issue with them to get an answer.
IMHO, You can write own extension for BLE if required.
Please see docs at http://docs.rhomobile.com/en/4.1.0/guide/native_extensions
if you have any news regarding timing, please let me know. If it is planned for the near future, I won't spend time in writing my own extension, because I think it's going to be quite some work, and I can use that time for other more specific functional parts of the app.