Mike Arrington asks if the login system on the G1 (T-Mobile’s Android phone) is secure suggesting that oil from your fingers might allow someone (presumably your girlfriend) to ‘break-in’.  FYI - if your hardware is in the hands of someone that wants the data onboard, the silly little four digit PIN on the iPhone or the cool finger trace on the G1 isn’t going to stop them for long.  The PIN on your cell phone is only designed to prevent ‘casual intrusion’ from associates and loved ones.  It is NOT designed to keep out people who would steal your data for nefarious reasons.

Oh and if your G1 screen is anything like mine, it is COMPLETELY smudged.  The glass does not get worn down in the pattern either, so I think you are okay.  If the only time you touch the screen is to login you need to remember to wipe your phone before leaving it on your desk for your girlfriend to pick up. The Android unlock screen in action:

http://www.youtube.com/watch?v=JGCIlAwrpvI