I am afraid of using any alcohol on the screen, not sure if it could damage it. Alcohol is a solvent for some things... Learned this the hard way when I tried to wipe some sticky stuff off my Car's dashboard once with some 70% isopropyl, and it took the color right off left a very ugly discoloration mark.

At the moment I simply use the cleanser for my eyeglasses with a lens cloth and wipe the N900 clean.

Anyone know if alcohol could damage the screen?