What happened to TechSounds 4?
TechSounds 4 was sold from 1999 to 2005 and has now been retired. TechSounds 5 is a completely rewritten version which supports Palm OS 5 devices. If you are an existing customer with an older (Palm OS 3 or 4) device, and you want to run TechSounds 4, contact customer support and request version 4.1.