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Can I just clarify.

Now, I have my own wish list for things I would like to see on the iphone, but I am not altogether clear on what is so big on this push notification or what its even for.

I can only assume its to do with getting your email pushed to you, but doesn't mobileme do that?
 
Can I just clarify.

Now, I have my own wish list for things I would like to see on the iphone, but I am not altogether clear on what is so big on this push notification or what its even for.

I can only assume its to do with getting your email pushed to you, but doesn't mobileme do that?

No, it's got nothing at all to do with email.

Say you have an application like AIM installed on your iPod touch or iPhone. That application works fine when it's open but when you close it that's it, it's offline and people can't talk to you.

Push Notifications is a service that Apple have set up in order to allow a quasi-background functionality to work for an app that isn't running in the background.

With Push Notifications, Apple allow a company to use Apple's constant data connection to the phone to push very specific alerts to the required app on the phone, even if it's not running. An app can get message alerts like the one you see for an SMS, a sound or a badge like you get when you get a new email.

This way you can be notified of something requiring your attention in a specific app but without the disadvantage to battery life and performance of having the app run in the background.

Apple said this will be coming in September but it has been pushed back to a later, as yet undetermined, date.
 
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