They started for Wirth in ETH Zurich.

Wirth developed Modula-2 and the Lilith Workstation. He needed someone to make a mouse and distribute the compiler.

http://en.wikipedia.org/wiki/Lilith_(computer)

It's not impossible that the Apple Lisa and later the Mac owes as much to Lilith as the Xerox Workstation that Jobs saw in 1976.

Hence the SWISS connection!