In its recent filing with the FCC, Apple claims to have not yet made a decision to reject the Google Voice iPhone app.  This doesn't necessarily accord with the original complaint, nor the responses of the other players.

First reported a few weeks ago, the US FCC requested Apple, Google and AT&T discuss their roles in the (apparent) rejection of the Google Voice iPhone app, giving them until August 21st to respond.

The responses were all filed on that date and make for interesting reading.  Thus far, only Engadget has transcripts of them.

The short summary first.  

Apple claims that it hasn't (yet) rejected Google's app.

AT&T has no idea what's going on.

Google has claimed privilege on all significant responses.

In a little more detail, it is more interesting to look at what the three respondents didn't say.

Both Apple and AT&T neglected to outline their mutual obligations.  Apple claims that, in response to one question, “no contractual conditions or non-contractual understandings with AT&T have been a factor in Apple's decision-making process in this matter.”  

However, in response to the next question Apple notes that “There is a provision in Apple's agreement with AT&T that obligates Apple not to include functionality in any Apple phone that enables a customer to use AT&T's cellular network service to originate or terminate a VoIP session without obtaining AT&T's permission.”

Correct me if I'm wrong, but aren't those two statements mutually exclusive?

Coming back to one of the opening tenets, Google has said that their iPhone app was rejected, Apple insists that this was a hasty assertion.