Absolutely nothing, I'd say. If you want to play 3ds roms right now, then it's even your only option. Gateway has been screwing all of us for way too long now, Sky3DS is a fair alternative if you just want to play roms.
And to all the people saying it will be worthless when the update comes out: wake up, really. Even if GW would release 'anytime soon' (lol), would you stillput your faith in this company? Apart from everything, they have showed they have 100% experience in keeping their customers unsatisfied, information wise. Any company should now better than to keep their customers in the dark for nearly two months, and there is simply no excuse for that.