1) The lyrics function: (To add lyrics in iTunes, right click on track, select 'Get Info' and edit 'Lyrics')
2) Google maps, which is way cool! You can view it in 'satellite' mode as shown, or 'map' mode, and using Wi-Fi triangulation technologies, maps is smart enough to detect my location (my house in Hougang) as pictured below. However, one disadvantage (more so on the iPhone 3G with GPS) is the lack of turn-by-turn navigation.
3) Scientific calculator (when iPod is turned to landscape mode):
4) Tap Tap Revenge is THE best free game app available as of now on the app store. A simple music tapping game, very well executed with wonderful graphics, supports awesome double player mode, has a vast range of difficulty levels and allows you to download additional tracks. However, it's a bit buggy at times... but still fantastic play! (No. 9 top free app on the app store now)
Will continue to post more Software 2.0 reviews in the coming days!