SmartLock is a cool LockscreenWidget, that can make the handling of your iDevice much more easier.
With SmartLock you have your most important Apps on your Lockscreen.

It contains a CalendarApp, a WorldclockApp, and CalculaterApp.

SmartLock works on every iDevice since iOS 2.0.
iOS 5.0 ready.

Enjoy!!

For a better use download
-Lockscreen Clock Hide