Good way to handle IAP timeouts?

Do anyone know of a good way to handle timeouts for IAPs? Because of the lag to the server I now "pause" the game and show a "Loading Purchase" screen until the IAP gets a connection the apple server. But if for some reason it takes to long I would like it to abort, is there any way to do this without using a counter or something? I am afraid that could be unreliable because some users may take more time to get a connection and also if the counter is always counting up it could reach the value that I want to abort AFTER the user clicks he wants to buy and another call is made to the server to retrieve the users information. I have seen the application automatically pauses when the prompt appear, but between those the counter goes up and I dont know of a way to detect when a response is coming in so I could reset the counter in that case. Is there a good smooth way to handle this?

I basically have a variable count up (as you said) and cancel the loading indicator after 4 seconds have passed if no response was received from the Apple servers. This is probably the simplest way and what most games tend to do. You could try posting a message that says "We could not reach Apple's servers. Please make sure you have a good internet connection and try again."

The only other feature we could use to minimize the wait would be to have some way to tell if there is a network connection or not. Then we could just disable the IAP process and leave the timeouts to only happen when your connection is truly bad. Right now, timeouts basically cover both cases.

Hm is there an event then to cancel the request after you have initiated a request for payment? I cant find any :s I guess you could just "ignore" to cancel the request, but I am afraid it will lie idle until the next time the user gets a connection. In any case that is what I have gathered from what happened to me here: http://community.clickteam.com/threads/83584-Testing-inapp-just-keeping-popping-up