NMemo

*New look and feel.. UI updated..
*Fixed layout issues for hdpi devices..
*Back button on the header of every layout (reduces pressing back button)..
*Separated general and private notes to provide flexibility in using app..
*Password protection for the private notes..
*Types of password: Password and PIN..
*Keyboard Layout changes based on the type of password..
*Changing and deletion of old password is possible anytime..
*Data for private notes is stored as encrypted text..
*Password is stored after encryption..
*Deletion of data via settings (clear data) is disabled to secure private info..
*Editing old saved note is possible in both general and private..
*Automatic name generation for both general and personal note..

xda-developers thread link: http://forum.xda-developers.com/showthread.php?t=2625203