Review: iPhone 3GS
If you put the iPhone 3GS and the iPhone 3G side by side, you won't be able to tell them apart at first glance. The only change at all is that the writing on the back of the iPhone 3GS has been chromed, and it is simply white on the iPhone 3G. That's the only discernible difference.
The screen is identical. The buttons are identical. All the basic functions work the same.
It remains a svelte device that slips easily into your pockets (and easily out of your hands if you're not careful). The weight feels good. Some may think that it is a bit wide from side to side, but given the prevalence of wide-bodied phones on the market these days, the iPhone still remains one of the thinnest for what it is.
Apple has made one change in that it covered the display with what it calls an oleophobic coating. This fancy name basically means Apple did everything it could to make the display smudge proof. In reality, some smudging will still occur, but it is way better when compared side-by-side with the iPhone 3G. So go ahead and eat some greasy potato chips or fries and feel free to grab your iPhone when it rings.
Things we wish Apple had changed might be an industry standard miniUSB port for charging and data transfer rather than the Apple proprietary port. Apple is not alone in this fault, however, as other manufacturers remain committed to their proprietary ports as well. I would have preferred to see a slightly larger display. Maybe toss in a flash for the camera, too.
But these points are nitpicking. The iPhone 3GS retains all the style and functionality that the previous two generations of iPhones have shared.