Another major addition is Personal Hotspot WiFi tethering for the AT&T iPhone 4, a feature introduced in iOS 4.2.5 with the Verizon iPhone 4. The AT&T phone can share its 3G connection with any 3 WiFi devices (down from 5 in the Verizon version, though this is almost definitely a carrier choice rather than a hardware limitation), but in order to use it you’ll need to shell out for the “DataPro” data plan that offers 4GB of bandwidth a month for $45. Sorry, iPhone 3GS users, but this feature won’t be available for you.

iTunes streaming also comes with the 4.3 release – once everything is properly configured, you can stream music or movies from your computer directly to your iDevice from your computer’s iTunes library. This is an extension of the Home Sharing feature that debuted with iTunes 9 (though iTunes 10.2 is required for this particular implementation).

If you haven’t already, you’ll first have to setup Home Sharing in iTunes using your Apple ID – this Apple ID will have to be the same as the one you use for your iOS device. Then, on your iOS device, you can find the Home Sharing settings in the settings for the iPod app.

Once you’re setup there, you should be able to stream from any Home Sharing-enabled computer on your network. In my admittedly limited experience with the feature, I had no problem sharing my iTunes library with either my iPhone or my iPad over my wireless network. It gives my 16GB devices the ability to see everything in my much-bigger-than-16GB iTunes library, which means I can finally have full access to all the music on my desktop by hooking my iPhone to the speakers in the kitchen. 

Overview and Javascript Performance Other Features
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  • enderwiggin21 - Thursday, March 10, 2011 - link


    "Furthermore, Mac OS has always closed applications when you _quit_ them. "

    Yeah...exactly his point. An iOS app gets closed... when you _quit_ it. Individually. One at a time. Going out of your way to do so. Just like an OSX app.

    Point made. You just echoed it.
  • Shadowself - Thursday, March 10, 2011 - link

    So when I close a window it is supposed to do what is done in Windows (as in on the Windows machine on which I am typing this)? Sometimes it closes that window. Sometimes it closes multiple windows within a single window. Sometimes it closes multiple major windows -- even across multiple screens in a multi screen setup. Sometimes it closes (quits) the application. How doesTHAT makes sense?

    And MobiusStrip... how hard is it to do "Command-Q" for 99.99% of all applications? Seems much easier than to remember that for some applications it's Control-Q, for some it's Control-X, for some it's Control-E, for some there is no supported control sequence (just close every single open window and it quits the application). Yea, that makes much more sense!

    I am NOT saying Apple has done it the best way it (or anyone) possibly can, but knocking Apple's implementation when the way it quits things is the most consistent one out there is just stupid.
  • kigoi - Thursday, March 10, 2011 - link

    why do you close them? they close automatically. what you see in the task switcher is only a list of what you recently used, not currently running apps.
  • solipsism - Saturday, March 12, 2011 - link

    WTF are you talking about? The Fast App Switcher when you double-click the Home Button? Those aren’t your running apps, those are a list of your apps as you’re last used them in the order you used them. You can test this by power cycling your IDevice and then seeing all those apps still in that list as soon as you can access the device. How the hell does one come to this site and not know that?
  • secretmanofagent - Thursday, March 10, 2011 - link

    I just installed it on my 3GS, and I noticed that in places in my apartment that I used to have poor service I have either full signal or almost full signal. I know they updated the baseband and carrier file, is anyone else seeing this?
  • MobiusStrip - Thursday, March 10, 2011 - link

    They're probably just dicking around with the signal-strength display again, to obscure the truth further.

    Remember when they claimed they'd been displaying it "wrong" for years? But when you actually looked at how they had been working, it was much more meaningful. It's a digital system, so for a wide range of signal strength, there's no change in performance. The meter used to reflect the variation across the significant (bottom) of the signal-strength range. But that was just a bit too much information for AT&T and Apple's comfort.

    It revealed the flaws in Apple's antenna design and AT&T's service.
  • Shadowself - Thursday, March 10, 2011 - link

    Actually the signal strengh issue was just the opposite as you describe as very clearly shown by this site in one of the most thorough reviews of the iPhone 4 anyone has done.
  • bplewis24 - Thursday, March 10, 2011 - link

    No, he is describing exactly what Apple did: they changed the way the battery signal was displayed and claimed they had been displaying it "wrong" for years.

    This site's review clearly illustrated the same, but it showed that the iPhone4 held it's signal at the lower attenutation better than it's predecessor did. It also, through a bit of subjective bias, tried to excuse it away by using anecdotal evidence (best case scenario by a person in a great coverage area) to dismiss claims that the problem was as bad as some thought.

  • tipoo - Thursday, March 10, 2011 - link

    I understand why some features aren't introduced to older hardware, but they don't even give the new javascript engine? What the heck. Especially considering that last years 8GB Touch was second generation hardware, and now not supported. One year old hardware, not getting updates. One of the things I dislike about Apple.
  • ltcommanderdata - Thursday, March 10, 2011 - link

    I was wondering if you could run your GLBenchmark 2.0 benchmark and see if there is any change in graphics performance in iOS 4.3?

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