Here is what i just saw on the r4i gold official:
R4i Gold 3DS Deluxe Edtion|R4i Gold 3DS|R4i Gold 3DS Revolution for 3DS/DSI/DSL
So it is another 3DS flashcart which support play 3ds games!
And i found a reseller begin to sell it already!
Buy R4i Gold 3DS Deluxe Edition [PM1100] : Wholesale Dealer, Distributors and Supplier - Game4Deal.com