Agree, I lay most productivity problems on an open floor. It isn't so much that an open floor allows "noise" to go around, but it sets the culture and expectation that interruptions are really "collaborating".
I'm all for collaboration, helping out colleagues, etc, but having no walks anywhere is a big target for "come talk to me". I prefer it all to be organized. Send me a Skype message, or an email along the lines of "I need your help when you have a moment." - Fine, I can do that. I'll read the email/skype message when I have a moment to take a break.
There is a colleague that I do work with, I sit right next to him, no wall, and he sends me a message on Skype to help him out when it fits my schedule even though he could just turn to me an interrupt me. I truly value this. If every single person did this, I would be much less hostile to open floor plans. It's not really the open floor that bugs me, but the culture and attitude it attracts.
