Right now, it's a bit of a puzzle, but the possibilities are huge. If it turns out to be a real ASIC miner, it might cause quite a stir in the world of Monero mining. But, if it's a CPU miner, it could shake things up for the whole cryptocurrency mining game.
I'm also curious about how the Monero community will respond to the X5. Will they tweak their algorithm again to keep it ASIC-proof? Or will they embrace the X5 as a new player in the game? It's still early days, but the Antminer X5 is one miner that's got my attention.