The other thing is I've searched and searched but can't figure out if I need a data connection on my phone to run the app. I've already downloaded it, and it seems as though that's not the case. I wouldn't need to connect to the internet anyway to run streaming music or anything like that as I plan to play the files directly from my phone.

I've looked at other head units that offer something similar like Sony's "song pal" and Alpine's "tuneit" but it seems they both need an internet connection to even run. I won't have that out on the road.