Originally Posted by nextjeter2
I know what Backgrounder does. It will either allow the whole app to run in the background, or it will allow the "Native Multitasking", ala, the iOS 4.0 Multitasking.
So using Backgrounder on a Multitasking-supported version of iOS4 (3G[s], 3rd gen iPod Touch, iPhone 4, or if you enabled iOS4 multitasking via jailbreak), Pandora can use "Native" multitasking just like Mail, Safari, etc. Whereas an app that was not updated to use iOS4 multitasking would simply run completely in the background, since Backgrounder has no API integration with the app in question.
What YOU are talking about is the enabling of "Fast App Switching", where it freezes the App when it goes to the background. I have tested this on a few apps, and actually, this "feature" of Backgrounder breaks a few apps. AOL Radio doesn't support Background playback of music, but it does support resuming when you return to the App (not specifically "Fast App Switching"). When Backgrounder is turned on for AOL Radio and you exit the app, the music keeps playing. When you return to the app, it stops playing and then attempts to resume the music.
And the memory usage footprint on Backgrounder'd apps still appears to be there, "Fast App Switching" compatibility or not.
So back to my original point, I see far fewer reasons to need Backgrounder. I will still keep it "just in case", but for the most part all that I need in the background running can do that now (Pandora, Navigon).
The app that I DO have running in the background with Backgrounder, however, is GV Mobile+ so it can continue to update in the background.