nUnlock Symbian^3 - rename from Jar to Sis
ThinkChange, nUnlock v5.1, Screen Locker, S60v3, S60v5, SymbianOS9.x, Signed, (for 5800, X6, N97, similar devices)
Slide to unlock your phone and customize your homescreen in your own way! In V5.1, you can download plenty of high quality wallpapers to set as background within the app
Hide Files v1.1.0 - Sometimes we have few important files present in our mobile and we don't really want these files visible to any other person who just take your mobile from you. To maintain the privacy, you require some sort of application which can protect your data from others.
Here is such an application called HideMe