The Ultra-High Energy Cosmic Rays, Neutrinos and Photons workshop was held May 16-17, 2007 on the Penn State University Park campus. The workshop, sponsored by the Center for Particle Astrophysics, brought together key experts to review recent advances and to examine future prospects for Auger, IceCube, ACTs, GLAST/Agile and other experiments aimed at understanding the nature of the highest energy sources in the Universe. The emphasis was on the confrontation between physical models and the vast array of new data that is being accumulated. There were five major review talks and invited reviewers included: Felix Aharonian, Francis Halzen, Peter Michelson, Alan Watson and Eli Waxman. There were also a number of invited talks emphasizing key physical questions and strategies for exploiting multi-channel observations with different experiments in understanding astrophysical sources. There was a substantial amount of time devoted to discussion sessions.