Made on an iPad Pro
How the 12.9-inch iPad Pro took me by surprise and replaced my laptop.
Here's a GitHub impact graph of every Skribit code commit. Starting from November 2007 during Startup Weekend (hence all the contributors initially), progressing through to when I began working full-time on Skribit in 2009, when we slowed things down in mid-2010 and then pulled it offline in April 2011. It was a great ride!