Count me in! Love the idea!
In fact, I just completed my first 30-seconds mindfulness exercise by focusing on the envelope icon right above, on the bar tool.... I imagined its feel, smell, sound, taste (yech), and appearance (nice bright white). I figure I did at least 30 secs of it. I do have a kitchen timer that I can set for 30 secs, I use it to keep track of 'time-out' for my kids.