If you want to test dead pixels before buying any Samsung Omnia you can do that test without installing any software. No need to install anything for Samsung Omnia.
You can find dead pixels in two ways.
On your device go to windows directory and find LCDTest.exe. Then run LCDTest.exe, you will find out the result.
you can find dead pixels turning on the camera and covering the lens. This trick has effectively identified dead pixel.
I hope you guys enjoyed this little tricks. I brought two samsung omnia’s for my friends using this tricks.