sentence: cpu : 400 mhz to 1000 mhz arm marvell armada 610 at 0.8 watt , with integrated graphics controller 1024 to 2048 mb of ddr3 ( ) 1024 kb ( 1 mb ) flash rom with open-source open firmware 4-8 gb of slc nand flash memory ( upgradable , microsd ) accelerometer average battery life 5-10 hrs screen 1200 × 900 7.5 inch ( 19 cm ) diagonal lcd ( 200 dpi ) that uses 0.1 to 1.0 w depending on mode .