That one surprised me too. Lukas is usually pretty insightful on UI/UX issues, but I couldn't disagree more with him here. Interface behaviors that temporarily

That one surprised me too. Lukas is usually pretty insightful on UI/UX issues, but I couldn't disagree more with him here. Interface behaviors that temporarily take over the whole screen, or large parts of it, leave me disoriented and distracted. The "File" menu in recent versions of Microsoft Office for Windows has the same problem. It takes over the whole window, and after I'm finished doing whatever I was doing from that menu, it sometimes takes 10-20 seconds for me to reorient myself... where was I? What was I working on? The default behavior of "Aero Peek" on Windows has the same issue too. At least I'm glad they reversed the full-screen-by-default Start menu after Windows 8.