Is anyone else concerned that we may have to start paying subscriptions for apps once the Push Notifications thing comes in? I mean look at apps like Palringo for example. It's free and doesn't rely on any annoying adds within the app. But when the push notifications come out they're going to have to keep every single Palringo user constantly signed in to all of their IM accounts all the time which is going to be a massive load on their servers, and then push thousands of updates a minute in the direction of Apple's servers to update everones phones. It seems to me that they're going to need to add quite a bit of hardware their end. So my question is, with these free apps where's the incentive to support push notifications? And if they do then where is the money going to come from to cover their overheads?