iPhone 4.0 OS claimed to come with multitasking
 

HaVe anyone heard about this?

http://www.google.co.nz/#hl=en&sourc...118a5967aca5c2


is the iPhone declairing war on N900?

Edit: sorry bad copy and paste. I'll paste the link to google result instead.

Re: iPhone 4.0 OS claimed to come with multitasking
 

nice link.... does not work

Re: iPhone 4.0 OS claimed to come with multitasking
 

You mean like this? http://talk.maemo.org/showthread.php?t=49534

and

http://talk.maemo.org/showthread.php...255#post601255

and this?

http://talk.maemo.org/showthread.php?t=49540

No I haven't heard yet...

Re: iPhone 4.0 OS claimed to come with multitasking
 

yes something like that. But apple claimed to be the best at it. Which making me wander! and at the same time thinking of what it will be like.

Re: iPhone 4.0 OS claimed to come with multitasking
 

It just a "fast switcher".. like the one from s60 devices... not a real multitasking... Far from what our n900 does,,,,

Re: iPhone 4.0 OS claimed to come with multitasking
 

It's 'more or less' multitasking:

+ (potentially) more resource efficient (battery, cpu, memory)
+ (potentially) contributes to a consistently smooth user experience due to the above

- developers need to make use of special APIs to define which parts of their app need access to these 'background running services'.
- This approach seems to cover a large need of multitasking on mobile devices, but not all.

Re: iPhone 4.0 OS claimed to come with multitasking
 

its s60 multitasking but without any background multitasking. so not really multitasking.
also how does anyone know what battery life will be like when its not even released yet.
iphone already as crap battery life so this will make battery life even worse, reason why theres no real multitasking is b/c it would only last 1 hour

Re: iPhone 4.0 OS claimed to come with multitasking
 

Can S60 keep certain services running in the background like iPhone OS4? (voip, downloads, streaming, music playback, gps access)

The true power drain of 'multitasking' depends on what the background apps are doing. If you just load 50 apps that does nothing, all they do is drain your swap space.

The 3GS and N900 has very similar spec. Cortex A8 with 1300-ish mah power source, similar sized screen, wifi and 3g. So they have similar 'power drain' centers.

Re: iPhone 4.0 OS claimed to come with multitasking
 

s60 can run anything you want in the background IM, VoIP, music, downloads,GPS, streaming thers no limitations its been doing it for years.
iphone os as not changed it freezes states in background and then just pushes the normal notifications in most cases
they think by adding a task dock and a icon that its now multitasking

Re: iPhone 4.0 OS claimed to come with multitasking
 

I think you misunderstood OS4.

What you've just defined was the current state of things with iPhone OS3. Most apps already save their states when you exit and resumes when you start them again, and pushes notification when they need to get your attention when they're inactive.

Re: iPhone 4.0 OS claimed to come with multitasking
 

The OS is already pre-emptive, and I've done multi-threaded stuff myself, both high-level (run loops) and low-level (manual sync), and I took a glance at most of the new calls. If I read things correctly, there are hooks to run your own code in what I assume are background threads, not just calls for passing grunt work off to a background thread with a specific function. Also, and again if I read things correctly, they might have extended the abilities of the notification callbacks beyond the 3 canned alert choices. Regardless, unlike the latest Sony PS3 fiasco, things seem to have gotten better, not worse. Just how much better I'm not sure I care at the moment; Maemo 5 has more to offer than I can handle right now.

Re: iPhone 4.0 OS claimed to come with multitasking
 

Yes, S60 have few similar service that can run in background, like the music player, calls, etc. Some apps can run in background too, back when I'm using Nokia 6600, the 3rd party MP3 player app can work in background.

The OS4 might have more services and possibly better management of the resources.

Re: iPhone 4.0 OS claimed to come with multitasking
 

Of course it's the best. Because it hides everything from the user.
It's the best for their user.

Job claims the user don't need to worry about closing any app in the "task-switcher" (because it can't), and user don't need task manager.

For a normal user, that sounds fantastic because the OS is so smart.
It's just like a dumb terminal for specific user, or giving a user to "GUEST" account, with many features turned off (like Task Manager). In a way, they say user don't have to worry; But the truth is the other way round, Apple don't have to worry. It's just like I've said, admin give the user only "GUEST" account access and very limited functionality, so admin tell user that they don't have to worry, but in actual fact, it's admin don't have to worry about the user.

Then comes JB for iPhone, where some users tries to obtain "Administrators" account.

Re: iPhone 4.0 OS claimed to come with multitasking
 

i think you need to look into this more
majority of apps will pause and resume upon opening new one in OS4 . there is no support for background multitasking in apps like twitter or IM
Its all based around push notifications and local notifications

from engadget
11:22AM We just asked Steve and co. about the lack of anything that can keep track of a timeline for something like a Twitter or IM app. Scott says that the new save states for applications will be much better than the current situation. Steve also said that they stand behind push notifications and still think it's the right choice for this platform. Then we asked about widgets or glanceable information and why it hasn't been implemented on this platform or the iPad. "Apple sort of pioneered the idea of glanceable information like widgets and it seems to me you've gone to great lengths to avoid something like that in this new OS. Can you tell me a little bit about why you've decided that? With something like the iPad, it seems perfect opportunity where you have a lot of real estate." Steve: "We shipped on Saturday, and rested on Sunday." (lots of laughs) We pressed and asked if it was possible. Steve: "Anything is possible."

anything not audio, VOIP or GPS will not multitask like you think like the keywords in this picture show.
http://www.blogcdn.com/www.engadget....204-rm-eng.jpg

Re: iPhone 4.0 OS claimed to come with multitasking
 

The key is how to talk your way out and make others believe.
Just like how Jobs talk about the stylus and task manager, simple users will believe and take their words easily, when in fact, it's because they can't do it or they don't want to give such feature, thus they come up with their superb skills in manipulation and twisting their way around. Man, they're great and so many people take their word for it.

Re: iPhone 4.0 OS claimed to come with multitasking
 

On the topic of "task completion." Plenty of these calls are of the type: "Do this task and when complete call this handler." Who supplies the handler? You do. There's lots of these new app-supplied handler calls, and you only need that one.

Re: iPhone 4.0 OS claimed to come with multitasking
 

Okay, I did the proper thing. I read the documentation, not just the API reference. I legally can't post anything here, but big brother background tasks are supported. You have to ask for them (an app can have more than one), they have to be granted, and there is a time limit returned with the grant. You also supply a handler that gets called upon either type of completion. But as NvyUs mentioned, you can declare your app as one of the special types, but the benefits seem only relevant to those functions.

Just more fancy lockdown. I'm done for now; back to interesting Maemo hacking.