Both my brother and I have N95's, he's just called me to say that the screen is broken. From the sounds of it, it will be the slider mechanism that's toast, he's had that before on a previous Nokia sliding phone.
Is there any point getting it fixed? He wants an N8, but will settle for an N900 if it's going to be a wait.
Probably the Flex Cable, a known issue with slider phones. Given the resale value of the phone probably worth getting fixed. Its not too hard to replace yourself too, a Flex Cable can be purchased pretty cheaply online (I repaired my old one when that happened). There are some Nokia Service Centre videos floating around the net that show how to disassemble the phone.