No Wi-Fi. Not on an iPod... that's what the iPhone is for, right?
iPhone is for making phone-calls.
I would like to see the 6G iPod have Wifi as well. Basically take the camera and phone out of iPhone. Keep the "communicator" (including email and Safari). I would just LOVE to see something like that. And there would be more than enough differentiation between iPhone and iPod. People who want a phone would go for the iPhone.
That said, I would understand if they took the communicator out of it as well. In fact, I'm expecting them to do that. But I would still like to see it

. Then I could replace my Nokia 770 with iPod, and I could relegate the 770 for GPS-duty in the car. But Wifi would make sense in any case, so you could buy songs from the iPod. Why shouldn't we be able to buy directly from the iPod? And I could really see the benefit with podcasts: those could become much more real-time when you could get new podcasts while on the road.
And the thing is that... Not having WiFi would be bad since iPods competitors would be having it, some of them would even take real advantage of it. And not having the communicator would make the WiFi less usable. I don't want to see an iPod with useless Wifi like Zune has. I want an iPod with WiFi that is really useful!
And if we get an iPod that is NOT based on iPhone, I would be royally pissed. The thing with iPhone is that it makes every single phone and mp3-players in the market look dated. And the problem is that that includes the iPod. Compared to the iPhone, iPod looks old and dated. Give us iPhone-iPod please!
Apple has already invested a lot of R&D in to the iPhone. And they can sell it for $499 and still get loads of profit from it. If they took some of the features away (camera and cell-phone) and replaced the flash with HD, they could sell it at a profit as well, especially since they could just re-use the R&D and design. Maybe $349 and $449? Hell, maybe $299 and $399? Apple COULD do it, and they would instantly make every single other mp3-player look ancient in comparison. And besides: having lots of different iPod-UI's out there is not smart.