Apple Native multi-tasking question

[iphone4523]

I've read conflicting reviews on this subject, and curious if anyone here has any "real" answers...


Does the native apple multi-tasking "solution" really drain the battery, or not. Some say it doesn't, because it is only keeping certain api's open, and others say it does, and they are OCD about closing every app in the "task" bar....

Just curious what you guys think.

For instance, if I wanted to keep skype open all the time to recieve incoming calls, or fring open, aim, etc.

Would I see a huge drain in battery?

Thanks.

[rumcajs]

i see no difference in batt usage...at least on my iP4

[whereswaldo]

Most Apps aren't ready for multitasking, so they just exit them when you background them. But of the ones that actually do background, If you run alot at the same time, you should see a slight drop in battery time