Okay, ladies, gents, and poke-holics...it's official. The Transferer II DOES work for eeprom gamesaves...I tested it with Pokemon Yellow, Metroid Fusion, and Zelda: The Minish Cap.
Golden, that "MEGA MEMORY CARD" won't last forever: it uses a battery just like the original cart. I had a Pelican Brainboy, and used it for the same reasons, many moons ago. It actually recently took the dirt nap. Lucky me, I had all those backups working in retail gamepaks, long enough for the transferer II to arrive.
The Transferer II is a great investment, for atleast backing up GBA, GBC, and GB gamesaves. Money wqell spent in my eyes.
However, if someone's not willing to go buy it, I could actually do a fellow gamer a favor, and backup just the gamesaves. Just PM me, we'll work out the shipping, and I'll e-mail the gamesave and the original cart back. Call it a gamer-samaritan.
Edit: For some reason, Zelda: Minish Cap and Zelda: A Link to the Past/Four Swords Adventure gamesaves aren't coming through properly.
Metroid Fusion Saves are, and for the poke-holics, Pokemon Yellow does transfer through just fine.