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ChipMusic.org / Forums / Nintendo Handhelds / modify a gameboy cart to use a li-po instead of battery
FRAM is Ferromagnetic RAM (google it!), basically allows RAM to retain data even without a power source (like traditional RAM).
By the way, welcome fellow Alabamian. In Tuscaloosa, here.
Thanks. 
@ chowdit1: Short answer: back up your data, batteries fail. If your saves are important to you, have a copy on another media, whether it's flash or a floppy.
I'm not a GB user but the issue of saves is common to almost all embedded systems. I'm sure others can answer to the specifics of the GB,with ways to transfer saves from it. I know somewhere in one of these replies someone mentioned how they transferred their saves.
Yogi
So pretty much, like I just said?