In reply to Mike.

I don't, though I do understand the concern. I just don't think it's our tools or processes that determine our creativity.

The new processes will be different and we'll have to adjust. Some people probably won't be able to, but at the same time there will be others who find themselves more creative with the newer processes.

Creative people will find ways to be creative regardless of what tools are in front of them or what restrictions there are in using those tools. The end product they create will likely be different, though no less creative.

With your own process don't try to forces yourself to change everything wholesale. Make small changes here and there and slowly adapt your existing process to something more in line with the new ones. You're still going to be creating some kind of mockup to represent certain stages of the responsive design and there's no reason you can't use the same tools and processes you use now to create them.

You'll have to adapt things to the new reality that things will change in your design once it gets pushed to the browser so you'll want to allow more room for iteration at that stage.

Things will be different. We'll need to adjust. That doesn't mean we'll end up any less creative than we are now.