My two cents: Apple contract with AT&T has a non-compete clause. Google Voice competes with AT&T's products/service on the iPhone, so Apple is contractually not allowed to approve it.
PhoenixDown -- Wants FIOS Premium join:2003-06-08 Fresh Meadows, NY kudos:1
Good point -- or it could be that Apple gets a % of the whole pie (voice, data and text) and Apple doesn't want to cannibalize the revenue from its revenue sharing agreements. -- ~ Insert a Funny Sig Here ~