I have noticed slowly, that the difference in time between a thread response and the email is fairly significant, and the last few days, it has taken up to an hour for the notification to come through. I don't know why, but it used to be about 5 minutes behind, or less. But for the last day or two, an hour. I can't depend on it to update me. I check my email on an iPod Touch 2G, and always check the timestamp, not delivery time. It is about an hour behind. Arn?
Well, I don't mean to change the topic a little, but I'm just wondering why you really need notifications if you go to TA at least once a day. The forums already show if threads have any new posts and you can subscribe to threads without getting an email everytime something new happens. I've found that it just spams up my inbox, so I don't even bother with it anymore.
It's just a personal preference, I use the e-mail notification system a lot as well. Personally I'd prefer to have all replies in my inbox, but I understand that admins only send the first unread reply (and not the following ones, until you've visited the forums) to decrease e-mail load. I didn't notice any delay, but then again - I never compare the times when the e-mail arrived and when the post was made.