The opening rate is irrelevant. The users can’t predict if it’s a HTML or plain text email before opening. It’s just accidentally higher on the plain text side.
https://github.com/maxwellito/vivus#firefoxFor Firefox users, you might encounter some glitches depending on your SVG and browser version. On versions before 36, there is a problem to retrieve path length via getTotalLength method.
interesting stuff.
what really bugs me is the zoom does not automatically changes to pinch zoom, I have to click on the zoom icon.
also a clickable link would be useful: http://ziteboard.com
I couldn't turn off the volume with the iPhone's default silent switch. So it's not safe for work for the first few secs:)
Anyway UX/UI is great, the game is addictive.