Originally posted by mikeSF and FWIW, the K10D rear screen is exactly the same size as the screen on the Blackberry Curve, so readily available and no cutting req'd. I don't know screen dimensions for K20, K7, etc, sorry.
good luck.
K10d is 2.5" screen. I believe the K20d is the same. K-7 is a 3" screen. There is a Delkin cover for the back LCD that has a removable flip cover. Closed, I don't get nose grease on the LCD, open it shades the screen making it easier to read in the sunlight. When you need to "chimp" the screen unclips from the cover.