A nifty little app called LockBot, allows you to change the way your lock screen looks and reacts. Change your lock screen to mimic the Galaxy S drag away, The X10 pull swipe up, and even the dreaded iPhone lock screen. There are two versions one for free and one for paid. The free version is very limited taking out the ability to download themes, shake to open, and adding certain items to your custom designs. The Pro version is available for upgrade for $3.49.
I downloaded and played with it for a bit and I really like the concept. It gives you a bit more then the plain old lock screen.
Rate & Download: LockBot Free