Applications I tested and that I like:

Games:

Asphalt 5

FarmFrenzy

Replica Island

UAE4Droid

Word Drop

Reversi

Music & video player

Cubed (3)

Mort Player

Meridian Video Player

System

ASTRO file browser

Battery indicator

Advanced Task Killer

Android Mate

free memory

TaskManager

Navigation

CoPilot

AndNav2

Boussole

Misc

Thinking Space (mind maps)

Barcode scanner

Backup contacts

Gabrouze VocAssistant (doesn't work yet, english instead of french...)

Keyboard

Smart Keyboard Pro

KeyPro (for freedom input keyboard)

MMG GamePro (for BT game control)