Here is an updated version of my previous mockup. It nows include group feature and some minor changes to represent focused app according to your suggestions.
its very very useful & nice . i think it is complete worth idea & it not should be on the next Ubuntu , it MUST be on it ! i think with this Ubuntu can be more than a computer OS! Are you put it on Ubuntu or now this is just a design ? If it isn't in 13.04 PLEASE surly put it on 13.10 (The next Linux). REALLY THAAAAAAAAAAAAAAAAAAANKS
Great job, however I think I would find the "scrolling box" to show focused application a bit too distracting. No box would be just as good in terms of usability. I'm guessing the user always knows what program is focused.
do you actually mean to have the dash integrated like that with the panel? 'cause if so I vote yes! also I really dig the clean icons without that shiny container. Also to note that an app should get away from the group folder when clicked, not holding my breath for right clicking since they've made a point of using it as least as possible.
Your design was really enthusiastically welcomed on the forum Ubuntu-fr. It was said there you should put it on Launchpad, perhaps official developers of Unity would find it interesting too! [link]
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You should consider getting this on [link]
cool design in my opinion!