Almost there
I've used this app before to show a live feed from one Teradek Cube and a streaming feed from a computer outputting a live/recorded/mixed feed through a second Teradek Cube for one commercial client. Despite a little latency to get used to, they found the portability of the feeds on iPads and iPad minis useful; hence the above suggestion for those shoots when device/workstation minimalism is needed, along with maximum portability.