“Further, productivity is not measured in speed of “coding”. Unless you’re a monkey implementing pre-designed features without any creativity, speed of entering lines of code is the least factor for your productivity.”
I’m sorry, I have to disagree here. Everyone is different. I think in words, not in images or sounds. The most efficient mediums to express my particular creative thoughts are an IDE, notepad, email, chat etc. I can be extremely productive and do great things if I can get those thoughts down and out. Pausing to use a mouse or pick up a pen disrupts my thought process. It’s too easy to be distracted at that point, I’ve lost my focus. While I’m mousing towards a button, I’ll notice I’ve got new email or I’ll hear a side conversation, and that genius idea fighting to get out has just disappeared into the ether. To me at least, using the mouse is like an artist stopping a masterpiece to go to the back and find the right shade of green. Forget productivity, what if the whole vision is lost in that time?