LG Optimus offers a really nice lockscreen with such pretty effects. And as you might expect, this amazing lockscreen has been ported and is now avaialable for free on Google Play store!
As always there's not much to say but this time it's really hillarious lockscreen - check the screenshots for more info:
All effects - 3DewDrop, Ripple and Whitehole are awesome. Unfortunately, if you want to use the DewDrop lockscreen (I think it's the best looking one), you have to be rooted in this case. For other screen effects, you don't need root access to run them.
App is available for free on Google Play: