I personally have been literally dreaming of the cheap, huge, high resolution whiteboard, where I can take vast amounts of data (in my case financial) and sprea

I personally have been literally dreaming of the cheap, huge, high resolution whiteboard, where I can take vast amounts of data (in my case financial) and spread them all over the thing, then annotate as desired. Already I use 2x4k screens to max the amount of graphical grid data I can display simultaneously in chart form. The challenge is to use algorithms to find the interesting bits of the data and highlight them (in my experience, large data sets are usually 99% boring - you're looking for the 1% gems). Still even if the vast amount of data are boring, being able to jump to any piece of it without interruption from any interaction, scrolling, or queries, just a flick of the eye - which large display surfaces enable - is actually hugely valuable for understanding a global big data system. No pause to control an interface - just look, possibly even walk, around a huge wall size version of this.