I never heard of the free 30K mile inspection or I would have taken the dealer up on it. I'm at 53K miles on a '06 Aveo right now, and after reading the posts on here about the timing belt, am a bit worried.
Is it worth doing a quick inspection myself, and if the belt looks in good shape, putting the replacement off for a year or so? I want to change the water pump at the same time obviously, and this seems low mileage to do that. But if a simple inspection is going to take half as much time as the replacement, I'll just bite the bullet and replace it now.
Also, in response to the initial post, I have never seen the 60K replacement covered by warranty - it has been required maintenance on every single car I have dealt with. One of my friends had their timing belt snap at 65,000 - it wrecked the pistons as well as the valves, but the dealer wouldn't cover the engine work under the powertrain extended warranty since the timing belt had not been replaced as required.