Wii U tablet controller to include flash memory

We already know that the Wii U tablet controller will feature a wide array of sensors, like an IR sensor, motion sensor and accelerometer. But according to a new patent filed by Nintendo, the Wii U tablet controller will have built in flash memory storage as well. We dunno if this memory is usable by the player, or if it something there just for the system and chip controllers to work. Out bet is on the second option