iOS 6.0.2 resolves problems with wi-fi network obver the iPhone 5 and the iPad Mini.
User reviews state that wi-fi speed have increased after updating it.
nevertheless,there are reports of battery drain increase after updating to iOS 6.0.2
So,at the end of the day,its ur choice and risk.
I just bought an Iphone 5, could you please tell me shall i update iOS 6.0.2 or not? Thank you