It seems that the first applications which will use the new multitasking feature in iOS 4 have already started to appear in the App Store. One of the first ones to support the new multitasking feature for the iPhone 4 and iOS 4 is Dropbox, which is a popular file sharing tool.
Apple has introduce seven specific background services for third party applications in iOS 4, and these functions will let you continue a certain task after you switch away from them.
The tasks supported are listed below.
Background audio – Allows your app to play audio continuously.
Voice over IP – Users can now receive VoIP calls and have conversations while using another app.
Background location – Navigation apps can now continue to guide users who are using other apps
Push notifications – Receive alerts from your remote servers even when your app isn’t running.
Local notifications – Your app can now alert users of scheduled events and alarms in the background, no servers required.
Task finishing – If your app is in mid-task when your customer leaves it, the app can now keep running to finish the task.
Fast app switching – This will allow users to leave your app and come right back to where they were when they left – no more having to reload the app.
We can expect to see quite a few more applications appearing in the App store over the next week before the launch of iPhone 4 and iOS 4.
Mac Rumors via 9 To 5 MacFiled Under: Apple, Apple iPhone, iPhone Apps