Career
He is a resident of Sweden since 1963, and has been an adjunct professor of multimedia at the Royal Institute of Technology in Stockholm, and is now an emeritus. Between 1967 and 1981 Wallis was the main presenter of the English language The Saturday Show on Radio Sweden
He has written several books on the music industry with Krister Malm. He has been appointed to the board of Svenska Tonsättares Internationella Musikbyrå. He testified in the Pirate Bay trial in February 2009.
