I don't think I'm convinced enough yet that an iPhone with 3G is coming out. I'll need a bit more evidence if I'm to believe this. 
Jeebus! Are you 'mericans so devoid of 3G that you don't listen to us Europeans going on and on and on and on about how pretty much every 3G phone on the market has the option to use only 2G networks?! Yes, it gives the user the option, but so does every other phone, this isn't new!
It seems like some people just come to this site to click negative on all the rumors.
Hope that you're using a hands-free setup so that you don't kill someone....
(If you kill yourself, that's just Darwin in action...)
so what if 3g and wifi are on at the same time? Same relationship as edge/wifi?
OK so this is my first post here (long time stalker)- so forgive me if this has been discussed before, but why would the enable 3G option be available on the regular iPhone? Furthermore, why would it default to "off?" I assume that if this is real, it just there for development reasons, but without the hardware, why have it?
For those of you without a 3G phone before, (almost?) all 3G phones have the option to set whether you want to run 3G at all times, or stick to 2G (GSM w/ GPRS/EDGE/etc) mainly to improve battery life.
You could have said that in a better way with less arrogance.
I'm still wondering if 3G is worth it or not. I got my 16G iPhone in April...
Asking whether or not the screenshot is fake is like asking if a perfect digital replica of a photo is fake.
If you already have 16G, why even ask about 3G?