ProPresenter has been used at all Catalyst conferences since its inception.
In this particular set up, a round LED cylinder was used for IMAG to provide video support to the venue, which was in the round. ProPresenter was used for all lyric and Scripture support.
Below the LED is a cylinder of Barco MiStrips, driven by PVP.
In front of the stage on each side was a series of 6 plasma displays, powered by two Mac Minis and two copies of PVP, through a TripleHead2Go. A master machine for each bank of Minis was at FOH that allowed control of the PVP slaves over a network.