After being pulled from the Japanese PlayStation Store due to "limited quantities" a few weeks back, Atlus has decided to restore the taster. Presumably they've stocked up on binary and have got plenty to go around this time. Until Midnight, February 20th anyway. According to Andriasang the demo's only back to celebrate the game's retail release. When the deadline's up, the demo will disappear. If you want to try it, make sure you do so now.