Comment iPod Touch 3G (Score 3, Informative) 289
The new iOS 4.0 software allows the iPod touch to stay connected to WiFi even when sleeping just as the iPhone stays connected to 3G. This was done because of the "muti-tasking" included in the latest build. I believe Skype has already released an update to run in the "background" on the iOS 4.0 software or will be releasing it soon.
