I have the wifi bacpac with remote and LCD bacpac You can only live stream to your phone so you can only see what the camera is seeing you can't get into the memory and watch videos that you've recorded or pictures you've already taken. I use them both a lot I really like the wifi bacpac for putting it in odd places (typically out of reach or can't see the screen) LCD screen is great for picture taking or when holding the camera in your hand to record and of course watching videos or pictures you've already taken
My brother has one too, just haven't ha the time to play with them both at the same time Jennerstown 9-9-12 - YouTube
my buddies pathfinder. Andrews rear axle vid - YouTube! I will be posting up a shorter version later tonight!