I thinking of getting a new flashcart for my DSi and thinking R4i Gold 3DS might be it. A couple of questions i would like answered please. 1. Does this flashcart actually work for the 3DS and DSi? (just want to be sure it's not a lie or something) 2. I heard that is uses the Wood FW; can I use that FW to play on the 3DS/DSi or do I have to use the R4i Gold 3DS Firmware? 3. Is it easy to patch/upgrade when new 3DS/DSi Firmware comes out and such?