I got this Nano-fibre wipe from Apple iMac 24inch.
That wipe cloth is great. So soft and very nice at cleaning all sort of clear shiny surfaces. Though you can't buy this somewhat or another and it will only given to their top product package. Iphone doesn't have one of this at all.

Hint: I work as an IT support at the University. Where all most 90% MAC machines in my department. lol. And Yet I love Maemo and YDL, Ubuntu and Windows 7. I'm not a MAC fan alright. Mac has a pro and con just like any other OS out there.

But I got these for free from each IMAC I opened to tripple boot Leopard+winXP+Ubuntu

I don't really like the Iphoney, all I like from it is the Multitouch otherwise the OSX is too closed source for me. Which I hate the most lol. I am gonna call my self a NOKIA fanboy and SONY PS3 fanboy. I hate XBOX :P

The cleaning stuff for glasses worked really well. Better than for glasses, in fact (I always prefer lukewarm water and soap plus rinse for glasses).

For my N900 I'm going to stick with the glass cleaner. I just used a cotton pad to wipe it btw. This may leave some fluff but it dries quickly and can be easily blown off or brushed off with anything made of soft cotton textile.

Alcohol shouldn't hurt your screen at all, but I wouldn't let it get in the phone-speaker on the front of the screen.

For glasses I like to use ammonia based glass cleaner and then just wipe it off. (no rinse) I find that it it seems to 'heal' the scratches, and make the lenses much cleaner.

if you need some inforamtion on glasses cleaners, I think this site provide a pretty complete list on different glasses cleaner. Enjoy!

I bought Apex Pro Lens cleaner, also available on Amazon, which I didn't see in the list. But it seems to work fine.

Also, the description in the message above this one says there is a "pretty complete list" on glasses cleaners. I didn't see a pretty complete list. I think the message above this one is SPAM.