The guys over at TiPB thought it was about time to take a second look at the 2008 iPhone 3G and see how it would perform on the upcoming new version of iOS, the iOS 4.2 Apple is rumored to be releasing sometime this week. They installed the GM build on the iPhone 3G, and as you can see in the video Apple's engineers really did everything they could to optimize the OS for the slower device (it's got a Samsung ARM 412 MHz processor and 128MB of RAM).
Scrolling seems smooth and fast, typing is ok, there are a couple of slowdowns when trying to pinch and zoom on webpages but no big deal. When iOS 4.0 came out in June iPhone 3G users were left out in the cold with a terribly slow OS that didn't run exactly "well" on their devices. I saw one and trust me, it was slow as hell
iOS 4.1 made things slightly better, but it looks like 4.2 it's going to be the ultimate optimized operating system for 3G. And it wouldn't be surprised if it was the last one, too.