iPhone OS 4.0 multitasking can be enabled on pre-3GS devices with simple config change

“It’s certainly exciting that the iPhone is getting multitasking… but with only the very last generation of iDevice’s supported, a lot of people are going to be left behind,” John Brownlee reports for Cult of Mac.

“Presumably, the issue is one of horsepower, but not complete inability for pre-3Gs devices to multitask,” Brownlee reports. “A developer has discovered that by switching just one variable, you can enable multitasking on the iPhone 3G fairly easily.”

Full article here.

[Thanks to MacDailyNews Reader “Edward W.” for the heads up.]

25 Comments

  1. Since the upgrade cycle is almost over for my Gen 1 phone, it looks like a good time to start looking at jail breaking it to take advantage of the other options out there. My Phone is still doing well and I’m hoping to get some more life out of it. It’s just not a good time to upgrade to new hardware when this one is doing so well.

  2. No – the problem is not horsepower. The problem is RAM.

    The pre 3GS iPhones have only half as much available RAM to operate. That is the problem. With half the RAM, the iPhone will be especially unstable multitasking. The older iPhones are already unstable in general due to low memory depending on the apps that the user has and uses. Many apps and even Safari has memory leaks which leads to instability.

    Moral: Do not multitask on pre-3GS iPhones even if you can. Why do you think Apple did not offer it themselves? That’s why.

  3. @ploogman
    good thinking – i was going to say ‘battery life’ but RAM sounds acceptable also. It’s really funny how people think Apple all of a sudden doesn’t have good reasons for doing things. They are a business out to make money – but one of the few who historically DON’T screw customers. People need to ask other companies to raise standards rather than exhorting ‘competition is good’ when innovative competition doesn’t actually exist. This makes it seem like all customers are clueless when they aren’t, and opens the door for iphone and ipad clones simply because the consumers aren’t savvy.

  4. Apple always decide what’s best for you because even if the device you have is capable, Apple won’t allow it so you don’t get a bad experience from a apple product. They know what you want before you know it ” width=”19″ height=”19″ alt=”smile” style=”border:0;” />

  5. I feel bad for the less-savvy customers who bought (and are still buying) the low-end iPhone 3G (and 8GB iPod touch), just because it was the least expensive. Those models are still on sale right now. iPhone 4.0 will work on them, but the key multi-tasking feature will be missing.

  6. Keep in mind also, that iPhones have been selling like gangbusters all this time without any multitasking whatsoever. So for most people, I’m guessing this isn’t the “killer feature” us geeks think it is…

  7. I’m sure Apple will disable this config change before OS4.0 is final. It was probably left in the current beta (accidentally?), and was to allow Apple engineers to test multitasking performance on pre-3GS iPhones.

    OTOH, I hope Apple *doesn’t* disable this–if someone’s technical enough to make this config change on their 3G, more power to them.

  8. As for Apple not supporting old hardware, the Cube ATV Server (G4/450) on top of the lIving room stereo is running Leopard just fine…..We’re not running Final Cut Pro & VectorWorks @ the same time as iTunes, of course. ” width=”19″ height=”19″ alt=”wink” style=”border:0;” />

  9. Of course it’s due to ram. Run iStat on your iPhone 3G and you’ll see that the ram is almost always maxed out. Sure, you can jailbreak it and multitask, but you’ll get way more app crashes.

  10. @iLuvMyMacs
    Of course it was a joke. It was amusing and not mean in the least. Since when can we no longer ‘rib’ friends anymore? For gaining weight, I’d like to recommend the Loco Moco from my local Hawaiian take-out.

  11. @Troy

    Totally agree. This has always seemed to be Apple’s policy and way of working. It upsets people who like to have complete control and free reign over their devices, and I have jailbroken my iPhone just to get Bite SMS, but I know the phone doesn’t run as smoothly now as it did before. Apple know what they are doing and put the user experience first

  12. Gabriel,

    No point in putting links in your posts. Half of participants here have ADD and will never bother to read what you linked (the other half likely won’t bother responding/posting comments).

    The third half (myself included) that actually reads linked stuff will agree with you (and the linked post).

    Tinkerers may well find a way to enable multi-tasking on their 3G devices. They will likely find their devices crashing much more often than before (unless they don’t bother using that multi-tasking, or use it very, very sparingly, with very small-footprint apps).

    I doubt Apple would bother disabling this work-around. They know that the only people to use it will be the loyal core fans, for whom the issue of more frequent crashing won’t be a problem. Only if the work-around becomes somewhat prevalent would they bother to plug it.

    And WTFrank:

    Why wouldn’t you upgrade your iPhone? I’m assuming you have 3G (since your ‘upgrade cycle’ is almost up), so can get a new one for $200. Your old 3G can easily fetch over $230 on eBay (if in good condition, with original accessories, you’ll likely get $260 or more for it). Even 2G iPhones are fetching over $150 for units in pristine condition.

    Upgrading the original 2G iPhone to the most recent version (presumably 4G, or 3GXS, or whatever) for less than $50 is a no-brainer. Upgrading a 3G to the latest model and profiting in the process is even less of a brainer (more of a no-brainer?). Not doing either makes absolutely no sense; you continue to repay subsidy to AT&T (by paying full monthly plan), even though you have already paid off your subsidised phone long ago. Why would anyone donate their money to AT&T every month? I’d rather get a new phone out if it, or give that $15 to some charity. AT&T certainly ain’t charity….

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