I am an estimator for an architectural design firm. I wanted to know if the technology exists yet, hardware/software wise, for someone to view and edit large blueprints on huge computer screens. Screens that operate similar to an iPhone with touch, and maybe the use of a stylus. Prints that could be viewed on the screen in full size 42", and even put a ruler right up to the screen to measure cabinet lengths and such. Any suggestions would be greatly appreciated.