Apple would do it.
Just looking back when they released a white 3GS. Yeah, white back, black front. That's hideous.
YES IT WAS... I camped out for a iPhone 3G... I wanted a 16 GB model. I was at college so I had to get it from an AT&T store. The person in line in front of me got the last black 16 GB model, so I had to get a white one. I HATED it...
A couple months later, I dropped it and cracked the screen. Got Apple to sell me a new one at the upgrade price, and sold the cracked one on eBay for $450... a nice $110 ish profit (after selling fees and tax on the new device).
---------------------------------------------------
OP: Those products you posted all look good and their colors make sense aesthetically (maybe with the exception of the original iPhone)
The two-tone iPhone looks awful IMO.
I will still buy it though... I am using the GS3 right now so I could sell my current phone before the market gets flooded. I really like the phone, but it just doesn't make sense to keep it. I am too invested into iOS and Apple. My car hookup, iTunes, iCloud... I am sure the new iPhone will be great to use, but I still think it is ugly (assuming this is EXACTLY what it will look like).
My hope is that this is the shape and design, but the real phone is much more polished.