The DX1 is a 9-by-11-inch slab that comes with 25 adhesive-backed keys. Place them in whatever pattern you want, slap on a label, and set each one to trigger an event: Check your stocks, insert text, blast opponents while leaping away from enemy fire. Each key contains an integrated circuit that communicates with the tablet by magnetic induction. Need a new layout? Move the keys and reprogram. $150