I myself doesnt possess a iphone. If i not mistaken, now 3GS by using itunes can free update or install IOS 4, is it true? If is so but why stil got ppl offer or download fr internet for 3GS upgrade to IOS4? Or those jailbreak 3GS nid tis kind of "support"?

Is ther any1 try compare b4 => 3GS wit IOS4 COMPARE wit Iphone4 wit IOS4 performance? Same OS but diff hardware/hp~

thx!