On his post, he starts with:

This is the team that thought that it was a good idea to introduce the “google calendar week” – that special five-day week that starts at random points in the old-fashioned 7-day calendar.

And finishes with:

Guys, you looked immensely stupid there for a while. But today I got a calendar update, and the weeks are seven days again, and pinch-to-zoom works again.