I really appreciate the work that power supply makers do to improve efficiency. Besides the direct costs of energy usage, the PSU is a major source of heat and noise in desktops, so better efficiency can also directly benefit the user experience.
Yeah, something stuck in my mind when I read "Fundamentals of Power Electronics" - I don't have the exact quote, but it basically mentions most efficency gains are primarily done to add features, not as part of any conservation effort.
As a power/software guy, i'm mostly looking forward the development of more non-backlit/outdoor readable screens, along with direly needed revolutions in hvac design.
