Y'know...if Gemini Summoner is indeed an Ultimate Offering in monster form, just think of all the applications. Gadgets anyone?
Imagine this: Special Summon Cyber Dragon, Normal Summon Gemini Summoner, pay 500, Normal Summon Gemini Summoner, pay 500, Normal Summon a Gadget, fish out another Gadget for later, go nuts. That is provided you're allowed more than one Gemini Summoner in the deck much less on the field.
The Monarchs would get a new pal to help them out too; same for Water and standard Beatdown decks. And of course, don't forget the Dual monsters. They may seem slow, but with 3 Gemini Summoners, hope so, Ultimate Offering, 3 Birthrights, Soul Resurrection (maybe), 3 Mother Grizzlys, etc...things could get interesting.
This is of course purely speculation.