Existing top ten:

1. Browser (no one has listed this yet??)
2. Rapier (I'm the 1st to mention this too, but it is one of my essentials
3. Pidgin
4. OMWeather (again not mention yet, but who doesn't use this daily?)
5. Canola
6. Mplayer
7. GPE Summary
8. Gnumeric
9. Notes (yes, I use it daily)
10. CrazyParking (to pass time waiting in lines, etc)

What I'd like to see now:
1. GUI for cron jobs - Doesn't need to be slick. Cron is cool enough already. I even have a proposed name for it: "Cronguint"
2. Can this one be forward ported to OS2008? Or something like it?Webcam