iPhone OS 4.0: Multitasking, finally, hooray!

I tried the double click of the home button w/ iOS 4.0 on my 3G. Doesn't work. Still uses the system defined double click of the home button.

multitasking and flash are the two features of iPhone 4 I like the
most. I have been thinking to switch to nexus from my iPhone 3G but
now I will stay with iPhone and wait for its release. Thanks Apple for
adding those great features.

I will queue up one day before so I believe I can buy one on June 24.
I will have to buy a case in advance but not so many choices at the
moment. This seems the only option,
http://www.iphonecaze.com/iphone-3g-cases/style-series/iphone-hd-ultrathin-case.html

If anyone knows any case for iPhone 4, please share.

I have iPhone 3G, and I was very dissappointed to notice that I won't get multitasking unless I buy a new phone.

So, in my small world, iPhone doesn't have multitasking.

I find this to be half-assed, to be as honest as I can. I understand every concern that Apple had regarding battery life, but there are two gaping holes in their background processing.

First and foremost is intermittent polling. So many apps hit at least a single web service, and the allowed background processing announced today missed a huge mark - for reader apps, email apps, etc., that could be notifying the user of new information (without the need for push notification servers).

Second is a follow-on, which is the ability to update an icon badge with information regarding an internet poll (or then push a "local notification"). A lack of background http polling is a huge disappointment for me as a developer. This not being true background processing is fine, but leaving out polling is a huge loss for some of us.

Multi-tasking is another reason why I really should get an iPad. Can’t wait to have them soon.

Ruby
http://www.dreamwalkmobile.com

Cool as Windows mobile 7 also is out, it's great to have the iphone 4.0 for multitasking. Game on!

I have zero interest in multitasking.

I think for devices like the iPhone/Touch/iPad I'll 99.99% of the time take battery life and app performance gains over multitasking.

Methinks multitasking on these devices is overrated.

The 7 API seems like a smart compromise between battery life and performance.

"let's say you're chatting on IRC in one application, and you want to hop out to check a Web page. Should you have to disconnect from your IRC session just so you can sneak into Safari?"

The above quote is exactly what I was hoping for amongst other things. Unless I'm missing something, this still isn't possible. There is no generic "leave an IP connection magically open" API.

Correct me if I'm wrong, but if it's not a VoIP call or background missing or something in one of the predefined APIs it isn't going to maintain connectivity once the app is closed. This is kind of disappointing.

Still a big improvement on the current capabilities, but falls short nonetheless.