'Ullo, Well, I must be the 'odd man out', because I have a 'Bad Elf Pro' which I 'Bluetooth' to my I-Pad with OZrunways....and I LUV IT!
To my mind, the 'Bad Elf Pro' is 'superior' as it gives the basic readings of speed, alt, track, and accuracy, all on its own screen - as well as on the I-pad screen - and can be connected to up to 5 different appliances....
Plus its display of satellite acquisition etc, instead of just a light, makes it well worth the difference...IMHO...
Bad Elf
And, no, not on commisssssssion.....just a 'good product' I rekkon..
Cheers