Now that Ars has said it publicly, I feel like it's OK to admit that several people in the know told me at WWDC that a new iPod touch would be released in September. Also coming in September: the first major revision of the iPhone 2.0 OS and the MobileMe push API for developers.
People like me who were a bit nonplussed by the iPhone 3G announcement (What, no video conferencing? No voice dial? Not even any Bluetooth syncing? Sheesh!) now have September to look forward to.
Apologies to Green Day.