i've been on the "preparing" screen for 25 minutes...
and don't ever use ziphone. it's bad for your iphone.
To answer those who are asking about updating a (ZiPhone unlocked) 1.1.4 jailbroken/unlocked iPhone, I've tried it and it didn't work.
I'll keep experimenting...
In the meantime, proceed with caution if you have an unlocked iPhone.
and don't ever use ziphone. it's bad for your iphone.