ZiPhone updated the post stating that if you can activate the phone on ATT (or your carrier) you can jailbreak with existing 2.4 version. Here is the post:

DO NOT UPGRADE TO 1.1.4

ZiPhone will soon work with 1.1.4.

 

But I need to FULLY test it and
do a few adjustments.

In the meanwhile, enjoy the KEY 🙂

 

Stay tuned.

 

People who donated will receive the next version a day before everyone else.

 

Expect a new version in 2 days (3 days for non-donors) :P

ZiPhone IS and will always be FREE.

NOTE: If you have a contract and activation

you can ALREADY use ziphone to jailbreak

and install applications on 1.1.4 !