I think ZF said in August that they would be submitting it in the next 6-8 weeks...which would be around now.
As far as how long it will take.... There have been a few iphone apps that have never been approved and some have taken months to get approved. Some companies have taken Apple to court over not being approved.
My GUESS is that it should be out by the end of the year, but that's only a guess.
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