not sure why everyone is so keen on trying to prevent scratches etc. my hero after a year, doesnt have a scratch. my nexus after months doesnt have a single scratch, back or front, same with my desire which ive had a month. these things are more unscratchable than iphone was. obviously im not talking about a hard drop damage. but you will not see a scratch on these screens ever. and i use mine HARD
I put one of those el-cheapo DIY screen protectors on mine that was lying around the house - it came off after a day, but while it was on, fingerprints on the screen were way less visible. I would get a screen protector for that alone. After just typing an sms or scrolling through a couple of menues the screen looks really dirty.