Getting new firmware installed is like doing a hard reset. Everything will be gone. Make sure you hotsync before you go to the store.

Do you need newer firmware? Who can tell! What does anyone really need?

Putting aside the philosophical comments, if you aren't at XG23, then there is newer firmware you can have installed. Check the version on your phone.

But, if **you** aren't having any problems, don't bother having the firmware changed. I'm a firm believer in "if it isn't broken, don't fix it".