iPad 3G
Initially you'd think they've got an iPad with a 3G data connection built in, why not an iPod touch 3G?
Except, once iOS 5 hits they'll be able to do equivalents of voice, video and SMS, you could imagine the telcos getting a mite upset. And it would rather blur the distinction between the ipod touch and iphone.
It seems an odd move at this point to do it to be honest - if they were going to add 3G, surely they'd have done it at some point in the previous three generations?