In reply to Steven Bradley.

This a nice article in concept. In reality, as a digital/interactive Art director for multiple platforms (tablet apps, phone apps, conference booth displays, web), the ability of the client to visualize is the deciding factor. I simply cannot move beyond static PS layouts since the client cannot visualize the comp without them. Wireframes are seldom usefeful to the client - they just want to see how it is going to look. They cannot make the conceptual leap. Working in the browser is not an option for the large projects I am on. Dev is much separate from design. Its part of the workflow of large Agencies. Your system may work fine for smaller projects with more compliant clients but not for most major fortune 1000 clients.