The 3.0 version of ZiPhoneOSX for Mac was provided as a free download on our website. This free Mac application was originally produced by Mac-free.com. The following version: 3.0 was the most frequently downloaded one by the program users. The program lies within System Tools, more precisely Device Assistants.
From the developer:
Jailbreak, activate and desimlock iPhone and iPod touch with a clear interface.
Starting with version 2.4, Ziphone provides a simple all-in-one interface or a separate
advanced interface for experts or for people who needs more control over the jailbreak
process. Users with AT&T or other "legitimate" iPhone carrier SIMs may wish to use the
advanced interface in order to retain their own real activation tokens.
You may want to check out more software for Mac, such as Fire, Line 6 Edit or tn5250, which might be similar to ZiPhoneOSX.