hmm, yeah, I read the news that "Skype updated to support iOS 4 background VoIP multitasking".
I beleve the right-side pic is holding it right.
well, glad to hear that skype for 3G is free.
"Well, it's about time. Touted back in March as one of the pillar apps to benefit from the new multitasking API, Skype has finally been updated to iOS 4 compatibility." and good update!
BTW: for iOS4, 'iOS4: Everything You Need to Know' and iOS 4 Upgrade Guide: Install iOS 4 on Your iPhone -> A guide helps you upgrade your iPhone or iPod Touch to Apple's new iOS 4: iFunia | iPhone Column