How to back up applications in Android? Possible Duplicate:
  How to backup an Android device?  




If I have installed N number of applications including big games, and I would like to back up them, so I could restore the games as soon as I factory reset my mobile, how can it be done ?

Any free apps ?
You can use Titanium Backup, but your phone needs to have root. It has a FREE and a PAID version.