Aug 24th 2009 10:15AM True but the mobile authenticators still work off of your cell phone's internal clock which is synchronized with your provider, but I'm not too up to date on the understanding on how those work anyway.
I've worked with RSA keys before, and unless there's a residual charge or a secondary battery that can power the clock for short periods of time by itself (Which could be possible) You can screw up the timing. Even if there are those things I wouldn't really suggest tampering with it unless it's broken anyway.
Aug 24th 2009 9:55AM One thing worth noting about the Authenticators:
The reason why it works is because it and the remote authenticator server are Synchronized, usually via the same kind of quartz crystal used in a digital watch. They change codes in the exact same way at the exact same time and last for the exact same duration.
If you were to remove the battery, you'd throw off the timing and render it useless.