I've yet to put together a proper intro / getting started video for blink(1). Here's a minor edit of our Kickstarter video that gives the rundown of the basic idea of blink(1) and how one would use it. To learn more about blink1, check out: http://blink1.thingm.com/.
And here's a 20-second short version of the same thing:
One thing that's pretty obvious in this video is we hadn't settled on the final design yet, except that we wanted the light to come out the sides instead of on the top/bottom faces.