I'm looking for the answer to my question but it's quite difficult for me. I would like to keep connected to the server in background sending location of the iphone with ios4.
I`m really sad because I think that multitasking of apple is not real multitasking, in fact they only keep the state of the app but they don't allow it to run in background.
May be somebody knows if is possible to send a call by http every 30 or 60 minutes...
Please, any help would be very appreciated. Thanks in advance