As of PR1.1.1

1. Overclock Kernel (Lehtos 900mhz so stable!)
2. fMMS
3. Conky
4. FM Boost
5. Mobile Hotspot
6. Hermes Sync
7. MSN Haze
8. Petrovich
9. PicoDrive & DrNokSnes (Megadrive / SNES Emulator)
10. Rootsh
11. Simple Brightness App
12. Extra Decoders Support
13. Recaller (This is awesome!)

For me, there are a few things that could easily top this list if it was ever invented. (or maybe someone could tell me good ones)

- Free & easy type of office file viewers (.doc / .xls / .ppw)

- Proper flash video player (to play youtube downloaded vids, current ones are unreliable)