This is awesome. I really hope that Apple does put this functionality in the official firmware for v3.0…
These are instructions on how to allow iPhone applications to run in the background. This tutorial will require a jailbroken iPhone on the 2.0 or higher firmware. You can find a tutorial to jailbreak your iPhone here.
In this example we will allow AIM to keep running in the background so you can get text message alerts without having the application open!
(via iClarified – iPhone – How to Make iPhone Applications Run in the Background.)
