Why does the orbic show that it's got 512MB? Where does that come into play?
RAM = 512MB, FLASH = 512MB
How it comes into play, the hotspot device has a micro Operating System on it with firmware which can be updated. Plus, the hotspot simcard can receive text and NMS messages which you can view via the web interface.
512MB -- Now, why it's for -- The hotspot stores text messages it receives on the sim card, which you can view via web interface. Plus, perhaps you can use it as a network drive.