i didnt realize it at first, now i understand. Multitasking is an API not a working feature applicable to all applications in Iphone OS 4.. Rather app developers will have to add this feature in their applications using the API.

so not every app can multitask, its not a built in feature. How would you know or remember which apps do multitask and whch dont. This is a whole lot of BS from Apple. Boy, they blew it.