4.0 firmware

Well, Apple has just released a new iOS firmware. 4.0 is finally here. I've looked up videos on YouTube and taken a look. Now, me being jailbroken and all, I don't really need to upgrade, especially seeing as there is no current jailbreak for the firmware yet. At least not for 3GS's. But there are some things I have noticed that I like. The ability to edit playlists right there on your iPhone for instance is pretty cool. And there multi-tasking, in my opinion, is more convenient than the backgrounding you can get from Cydia. However, things like changing the wallpaper is not that good seeing as if you jailbreak, you can customise your whole theme. Let me know what you think of Apple's latest update.