I have been using the CC254x devices bought from ebay to learn how BLE works.
I had to modify the Adroid "SensorTag" app source code to make it recognize the cheaper modules. The Sentag specific properties mess up other accesses.
BLE Device Monitor can recognize these modules and read general service properties. BLE Device Monitor does have a few nice features too. I am hoping I can use it to validate the apps i am exploiting.
Releasing the source code will benefit everyone using Android environment.