We use cheap HC-05 Bluetooth modules and a generic serial BT app on Android to great effect. There is an absolutely minimum amount of configuration at the Arduino end and the BT app on the phone is completely configurable.
If you have an issue with power, then a BT4.0 device may be worthwhile for the power saving, but if you are mains powered, forget it - too many incompatibilities - stick to BT2.1.
FWIW, it costs us about $4 for an HC-05 module on a breakout board that has 5V and control pins.
@Daniel_Garcia , you were mentioning you used the rfduino underlying. any forecast on the full rfduino support ?
Not yet, no - mostly its a matter of me getting a solid block of time to work on it, and I still have some issues to fix and cleanup before what I used on the contract can be used generally.
@Justin_Eastman I’ve played with these jeenodes a little (LEDNode in fact), but never tried to control digital led with them. Did you ?
@albert_van_wessel Any of these apps are good: https://play.google.com/store/apps/developer?id=NEXT+PROTOTYPES
I backed the aurbee kickstarter in the idea to be able to create a meshed network of “fastled controllers”.
Aurbee = arduino+zigbee in one.
Again some delays on it (we got used to delayed kickstarter s 
) But should be coming soon… For sure I will update the forum