Update ipod touch 2g to iOS 4? I have an iPod Touch (second generation) with iOS 3.1.2. Will I lose battery life or performance if I update to the latest iOS (4.2.1)?

These are the closest answers I could find:


iOS 4.2 on iPod Touch 2d Gen: is it worth it?
Does performance degrade between iOS 3.1 and 4.1 for the iPod Touch 2nd gen?


However, these relate to somewhat different versions of iOS.
I second that. No problems. I am sending you this post from my iPod touch 2nd generation with iOS 4.2.1.