Actually, i found another Brand name of Screen Protecter, EXIM which can be suggested to use because i found it's useful for Nano. Because we should know that the Nono Looks Great and cool but the surface of it is so easy to be scraped, it's really bad!!! last time i went on the web and found a link unconsciously, it's provide the Silcone case of Nano and i orderd one of them, it works !!!!
that's why i think it can be suggested to use to you all, the link is here:

www.pda-now.com