I would like to create a simple timer, witch alert the user 10, and 5 minutes before the end, via Push notification.
It's the same thing than the Apple's Clock, so it doesn't need networking (to use on iTouch).
So, how can I alert the user "End in 10 minutes" for sample, even if the app is closed?
Maybe via push, but I didn't understand how it works.
and sorry for my bad english.
Sounds like what you're looking for is local push notifications which won't be available until iPhone OS 4 is released. Until then there's no way to do the notification you're looking for except via the existing push service which wouldn't work on an iPod touch or an iPad.
Thanks, I'll wait…