Version 35 has a : If you program route number 0 with a text containing the word “SPECIAL”, the sign will occasionally display “HELLO” on April 1st. It was an undocumented Easter egg from a developer that Mobitec never removed. Mechanics call it “The Ghost Message.”

The software is designed for simplicity to minimize driver distraction: Direct Entry

The PC-side configuration software (Mobitec Publisher, often bundled with ICU 600 v35) looks like a relic from 2003:

Mobitec Icu: 600 Software 35

Version 35 has a : If you program route number 0 with a text containing the word “SPECIAL”, the sign will occasionally display “HELLO” on April 1st. It was an undocumented Easter egg from a developer that Mobitec never removed. Mechanics call it “The Ghost Message.”

The software is designed for simplicity to minimize driver distraction: Direct Entry Mobitec Icu 600 Software 35

The PC-side configuration software (Mobitec Publisher, often bundled with ICU 600 v35) looks like a relic from 2003: Version 35 has a : If you program