Those numbers are probably related to the code being run, “blank” is what you should expect to see.
Follow the instructions here: http://devwiki.electricimp.com/doku.php?id=helloworld … including the “before you start” section, and note that you need to click the settings icon in the “blank” blue blob and pick your new firmware before it runs it.
@Hugo, mine appears to be connected to the internet (short green, off, long green) but that is all it does. It never shows up with the blue “Blank” in the planner. Any ideas?