That's even more confusing because the app I have installed right now for these stats specifically says 333MB ROM used out of 498MB total. Below that it says RAM currently used is 65MB out of 325MB.
At the very least, shouldn't the app show 333MB ROM out of 1GB ROM instead of 498MB? I have seen no indication that the total ROM is 1GB in any app, widget, etc.
Or is the device only showing me as having 498 MB ROM because 502MB is used by the OS, so they don't display it ever having been available?