It's called Throttlelock.
Here is a link to the site:
http://www.throttlelauncher.com/port.../ThrottleLock/
I've been looking for an alternative to the default windows lock screen, since I cant run around without security on my phone. The problem with the wm lock screen is that it doesn't show the time and the battery meter at the same time, so you have to choose. And having to key in your pin every time just to check out the clock, or for any reason, is cumbersome. S2U2 is extremely buggy for me, and the security also uses a pin code.
What's cool about this program is that instead of using a pin code, you create a pattern on a grid of dots and you can just slide your thumb around the dots to enter your unlock pattern. The size of the grid is user-definable, so you can increase the size of the grid and create an extremely secure unlock pattern that can also quickly and easily unlock your device.
Here is a video showing how easily your unlock pattern can be entered:
http://www.youtube.com/watch?v=9mXRjpSghwE
The latest release also has a 3d effect based that utilizes the 3D sensor. I'm not too fond of it, but some of you may like it. I've disabled it from the user settings.
Here is a video of the 3d effect:
http://www.youtube.com/watch?v=iskiWcHwdfM
It works perfectly on the TP2, and it's so nice not having to key in a pin. Hope you guys find it as useful as I have.
Edit:
I've attached the cab for those of you who are having problems accessing the site.