I coded up this page in response to the comments from my HN post on Thursday - <a href="http://news.ycombinator.com/item?id=3601687" rel="nofollow">http://news.ycombinator.com/item?id=3601687</a> . There was a lot of interest / critique re the mapping between letters and dots, so I resurrected this UI for experimenting into a better web form.<p>Thanks for the comments on Thursday - I enjoyed battling it out :)