Via the AJH Synth website:

"It is a great honour that Hans Zimmer has chosen to work exclusively with AJHSynth to create a one of a kind analogue modular synthesiser. The RadioPhonic System was specially commissioned to take pride of place in the new Radiophonic workshop which Hans will be recreating soon, back at its original site in the Maida Vale Studio, London."

AJH have also uploaded a nice musical demonstration of the system:

The RadioPhonic System can be ordered from AJH Synth directly.