Increased pumping power penalty and manufacturing costs are among the major limiting factors for further enhancement of heat transfer coefficients for single phase and phase change processes. To develop next generation heat/mass exchangers that have better overall performance and can meet size, weight, and pumping power constraints while being cost affordable, one needs to utilize innovative designs, materials and manufacturing techniques. In this presentation we will review progress achieved in Phase I of a government-sponsored project in which a team of collaborators from academia, industry and sponsoring government agency achieved new levels of heat transfer performance on the air side.