ESP8266/Arduino: Playing around with the upcoming filesystem feature

I recently stumbled on a feature that hopefully soon will be integrated into the stable release of the ESP8266/Arduino environment: a file system interface. Low-Level: EEPROM Up until now and currently your best bet for data persistence in the stable release you could use the EEPROM interface to write and read your data so it would be available between reboots of the device. This persistence interface is pretty lo.....