Community macaba has a piece of code available on the community that allows you to easily send data from a running VI to a UI mockup of the VI on your iOS device. It uses a special version of the UDP protocol to send data back and forth. The direct applicaitons I see this benefiting is when you want to control a VI remotely and want to use devices that are commonly available (e.g. I want to turn off that valve from my iPhone while I travel) and also for just remote viewing as well (e.g. I just want to see what the temperature if on my applicaiton from anywhere). Go check out macaba's example and see if it could fit into your LabVIEW application!