This looks great, but I hope they don't fall into the "manual window placement" usability trap. There is a reason the "old-fashioned" tiling window managers ar

This looks great, but I hope they don't fall into the "manual window placement" usability trap. There is a reason the "old-fashioned" tiling window managers are still popular. And today most applications are internally structured via tiling/splitters and tabs, rather than individual window placement. Let alone that all attempts for a "web desktop" never took off. Alas, I don't know any authorative sources for that, but I bet that manual window placement (and most of the time, also overlapping windows) is a well-known anti-pattern of user interface design.