I updated my 2G iPhone to 3.0 when I went home for lunch. After I left I noticed something weird in one of my playlists. I have a smart playlist for my most recent podcasts. In iTunes I have the playlist sorted by date added so I can just play them in order in the car without having to mess with the phone while driving. That playlist is now in reverse order on the iPhone (newest podcast first). I don't know if it's just a one-time glitch or if it's a bug.