nrf51288-DK storage

I just tried with bare 51822 module from ebay. I only removed debugger and tab complete added storage (and reduced RAM to 16KB and variables to 300 since my module only has 16kb) and while building I see

CODE: 110592 -> 255820

so I increased storage pages to 6 and while building I see

Testing espruino_2v01.102_nrf51822.elf for NRF51822DK
STORAGE: 256000 -> 262144
CODE: 110592 -> 255820
Code area Fits before Storage Area
GEN espruino_2v01.102_nrf51822.hex

and in console I see

>require("Storage").getFree()
=6144
>process.memory()
={ free: 246, usage: 54, total: 300, history: 33, 
  gc: 0, gctime: 3.60107421875, "stackEndAddress": 536884592, flash_start: 0, "flash_binary_end": 255828, 
  "flash_code_start": 256000, flash_length: 262144 }