I saw some YouTube video where iOS 5 was running on iPhone 3GS and believe me it wasn't lagging at all, I was even surprise to see how fast the iOS 5 was runing on the iPhone 3GS. You can search on YouTube by your own to see those videos.
I saw some YouTube video where iOS 5 was running on iPhone 3GS and believe me it wasn't lagging at all, I was even surprise to see how fast the iOS 5 was runing on the iPhone 3GS. You can search on YouTube by your own to see those videos.