This is a pretty neat idea and I can definitely appreciate the time you've put into it! The only reason I didn't pull the trigger to buy it is because I'm a heavy full screen user, so I hardly ever see my menu bar while working. I suppose I'm not your target user, but feedback nonetheless.
Yes sir, the full screen support was actually the longest part of my development! :) I ended up open sourcing a little bit of code from Timebar — code to detect when the user is switching to/from a full screen app. https://github.com/shinypb/FullScreenDetector
