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iPhone OS 4.0: The Best New Features
New Features: Multitasking, App Folders and More
• Multitasking: It's here, finally. It's handled with a simple task switcher: double click your home button, and you get a list of running apps. Select, switch, done. Multitasking is limited to audio streaming, VoIP and GPS apps, as well as a few other allowances: they can finish specific, important tasks in the background, for example. As far as non-music/nav/VoIP apps, those can be suspended in the background, but not left running. (See below.) Full details here.
• Fast app switching: With iPhone 4's multitasking, most apps aren't actually running in the background—just certain functions of the app, like an audio stream or a GPS lock. But! All apps can now be frozen, in full, so that when you reopen them, they're restored to exactly the state they were in when they were closed.
• Local notifications: Notifications can be sent between apps on the phone, not just from remote servers. In other words, if something important happens in an app you've opened and moved away from, a notification will pop up in whatever app you're using at the time, effectively saying "switch back to me!" It's a fairly clever way to keep track of multiple apps without the need for a start bar or dock-type interface.
From Apple's dev guidelines:
Apple's official line:
The advantage of local notifications is that they are independent of your application. Once a notification is scheduled, the system manages the delivery of it. Your application does not even have to be running when the notification is delivered.
And some more technical details, again from Apple's developer guidelines:
iPhone OS 4's new multitasking offers users a new way to quickly move between apps, and provides developers seven new multitasking services to easily add multitasking features to their apps. These services include background audio, so apps like Pandora can play music in the background, and VoIP, so VoIP apps can receive a VoIP call even when the iPhone is asleep or the user is running other apps. iPhone OS 4 provides multitasking to third party apps while preserving battery life and foreground app performance, which has until now proved elusive on mobile devices.
• App folders: Now you can sort your apps into folders! That's homescreen clutter solved, just like that.
An application can request a finite amount of time to complete some important task. An application can declare itself as supporting specific services that require regular background execution time. An application can use local notifications to generate user alerts at designated times, whether or not the application is running.
2160, to be exact.
Folders help users better organize and quickly access their apps. Simply drag one app icon onto another, and a new folder is automatically created. The folder is automatically given a name based on the App Store category of that app, such as "Games," which the user can easily rename. Using folders, users can now organize and access over 2,000 apps on their iPhone.
• A new Mail app: Unified inboxes, multiple Exchange accounts, fast inbox switching, threaded messages: These new features are actually a huge deal, since the iPhone's mail client has barely changed since 2007, and Apple doesn't allow alternative mail apps.
• iBooks: Oh hey, that iBooks ebook reader app and accompanying ebook store we first met on the iPad has ambled on down to the iPhone. Nice, since you can now take your books with you wherever you go, as oppose to wherever you go with your iPad.
iPhone OS 4 delivers the best mail experience on a mobile phone with its new Unified Inbox, allowing users to see messages from all their email accounts displayed together in a single inbox. With just a few taps, users can quickly switch between inboxes to see messages from any single account.
• Custom backgrounds:Jailbreakers have them. Hell, the iPad has them. Now you can choose a persistent background for your iPhone—and not just for the lockscreen.
• Game Center: Apple's going to roll out a centralized gaming service—a multiplayer network like PSN or Xbox Live—to help connect games to one another, by the end on the year. There are 3rd-party services that already do this, like OpenFeint. They will probably die.
• iAd advertising: It looks like Apple's finally making use of Quattro, that mobile ad company it gobbled up a few months ago, by rolling out its own advertising platform, a turnkey ad plugin for app developers called iAd. The theory here is that instead of relying on links to external websites, which pull users out of apps whenever they tap on an ad, developers can use Apple's new tools to keep people in the app while still showing them advertising—sort of like popover browser windows. You can watch videos, play games, and even buy apps from within these ads. This is in the iPhone OS 4 developer tools, but it's not explicitly a part of OS 4, so you won't see apps with iAds until later this year. Full details here.
• 5x digital zoom: Could this hint at a higher quality camera in the next hardware? 3.2 megapixels seems a bit low for 5x digital zoom.
• Bluetooth keyboards: Another carryover from the iPad, Bluetooth keyboard support will finally come to iPhone 4.
• A bevy of other new developer features, including 1500 new APIs to play with.
are they releasing this on the 3g or is it straight onto the 4.0
The author here has given us a detailed account of the features of iPhone OS 4.0. He has listed a lot of things like multitasking, local notifications, iBooks, Bluetooth keyboards etc. Of these the topic iBooks caught my eye. Being an ardent reader I always found it difficult to carry my books wherever I went. But now that problem is solved. I need to carry my iPhone only. This is a wonderful, elaborate blog. I hope that such blogs will come in the future also.
Very nice review of the iPhone 4.0. There is a new feature where in the iPod you can create your own playlist. This works as expected - however if you hit shuffle and then plug it into an alpine in car deck it plays the first shuffled song and then it goes in order of the playlist (not shuffled).
Great review and I appreciate them. As you say, shorter and crispier contents catch the eyes of readers.But at times one needs to be elaborate while sharing their own experiences which may be of great use to those who read them.
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