So I've just read through all of the posts in this thread and I'm considering jailbreaking my iPhone 3G when I get a Mac within the next month. I only intend on going through this process to install the multitasking, home screen wallpaper and battery percentage that didn't come with the iOS4 update which I was a bit disappointed with. Do you think this will take a hit on the battery because nothing extra will be used in the background compared to my iPhone now (I don't think anyway). I'm not really sure whether I'd actually use Cydia or not because the only things I probably change is the theme, but tbh I'd probably not even do that as I'm really paranoid about the placement and how the icons look. Most themes don't cater for all icons that I've got on my iPhone so that would really bug me. Also would the extra features slow the iPhone down that much if I only used multitasking when I needed it and deleted them from the multitasking bar when I was finished with them? It would be good to know from someone who has done it to their own iPhone 3G. Thanks for any help. P.S. I know iOS 4.0.2 has just been released but I just read somewhere on Google that it is still possible to jailbreak with the latest version of redsn0w because the exploit that that uses hasn't been fixed.