So whats not saying it would follow suit? and that's apples plan now they really going to let the design of iphone 4 only last a year:
Iphone 3G to 3GS same design
Iphone 4 to 4GS same design
I don't think there is any reason for them to change the whole manufacturing process even apple themselves has said THIS IS THE BIGGEST LEAP FORWARD!
There isnt much to compete with the iphone 4 design ether so I think it will be just spec bumps following the macbook approach as there using apples famous aluminium and glass already with the iphone 4!
I laugh heartily at anyone who says "just" spec bumps. Hilarious really. I bet you think the iPad2 is an incremental upgrade as well?
Design means nothing. Specs/processing means EVERYTHING. Example: Lets say your laptop was slow, and you wanted it tuned up. If I took the case off, and replaced it with a more stylish version, would you consider that an upgraded computer?
The chips don't know that they have a more stylish case. They will perform exactly the same.
The iPhone4 has the same internal components as the 3GS. It was a minor bump, as far as capability is concerned. Yes the new screen is nice, but if I hook up my LCD to different computers, it desnt increase performance.
So, like I said, sure it might be called the 4GS. But if it gets the new A5, it will be a massive upgrade, more so then 3GS to 4. The new dual core proc will be relevent for many years, jsut like the 3GS has been. People who bought the 4 bought tech that was EOL, with every last drop squeezed out of it.
But no matter what happens, it will be the 5th version of the iPhone.