While we'd heard many networks were unhappy with Time Warner's decision to release its live TV streaming iPad app and there have even been whispers of cease-and-desist letters in the offing, Fox has put a request to have its channels excluded in writing. At issue is whether or not their agreement allows Time Warner to provide the channel on devices other than the TV -- while TWC is confident it does since it only works within the customer's home, the networks would apparently like to renegotiate before conceding anything. Senior VP of Fox Networks Group Scott Grogin confirmed the letter was sent but did not reveal any details