Best android must have apps

here m gonna post best apps and there usage.... u can add your own apps and help people out... thanx in advance

1...
- mini info : shows details about
ram,cpu,card,phone space,
wifi,bluetooth,wireless etc
- winamp : alternative to the android music
player
- x construct : a small game that allows the
user to build bridges
- team viewer : desktop remote control
- sniper : small sniper game
- robo defense : tower defence game
- opera mobile : internet browser
- yahoo messenger: chat software
- Mafia wars : famous facebook game
- lg application store: an alternative to
android market
- doodle jump : jump game
- camera 360 : an software that allows to
take pics using different effects
- astro: file manager
- advance task killer : task manager
software
- adobe reader : pdf reader
-Astro: File Manager
-Fancy Widget: Home Screen widget for Date
and Weather
-Go Launcher: Home replacement
-Go SMS: SMS application
-Opera Mobile: Web Browser
-SMS Backup n Restore: SMS backup app
-AndroMax: Home Screen widget
-z4root & Superuser: Rooting