For the iPhone 3G, the biggest new feature for many users under iOS 4.1 is the phone now actually works. Making the iPhone 3G usable under iOS 4 came with some trade-offs before the new OS was even released -- app multitasking and wallpapers didn't make the cut on the older iPhone -- but it looks like a couple more features have been pruned from the iPhone 3G after iOS 4.1.
One missing feature we noticed right away: Spotlight no longer searches through MMS messages on the iPhone 3G after the iOS 4.1 update. Given that disabling Spotlight searching was the most common suggested remedy for poor iPhone 3G performance on earlier build
