That window looks like Trello, but I'm sure it is a Max patch. Maybe a Trello clone made in Max.
I love these series of pics, it's great to get a peak into the working lives of the people that create Max. In fact it would be really interesting to know more about the daily development process of Cycling '74; which tools you use to track issues and to communicate, when and how you merge your code, when you decide to release, how you divide tasks, how you solve conflicts, how often you meet (irl or virtually), who manages priorities, how you structure your code, etc etc.
Many blog posts have been spent on the slight variations of web development processes, but since Max is by no means a standard application to work on I'm sure hearing more about your daily experiences and decisions could be very insightful if not inspiring for lots of developers.