Non-volatile storage on the 101

How do we get at all that juicy extra non-volatile storage that the 101 provides? I see there's emulation of the old EEPROM style non-volatile storage, but it also emulates to limits of the older chips, with only 1kB of storage available.

If I want to write a file longer than 1kB to non-volatile storage on the Arduino 101, and read it back later, what commands should I be looking at?