Wondering how your iPhone 3GS will perform with iOS 5 compared to iPhone 4? You should totally check out this video:
httpv://www.youtube.com/watch?v=2Oi9BG6wDwg&feature=player_embedded
Looks like iPhone 3GS is a pretty powerful device after all and definitely not obsolete for the next year or two!
[via iPhoneIndia]