The results of experiment and simulation described in Chaps. 5 and 6 illustrate that the large attached bubbles described in Chap. 5 contribute significantly to the improved heat transfer coefficient in boiling dilute emulsions under some conditions. Existing models of dilute emulsions that consider only the interactions of dispersed droplets and bubbles in the bulk of the emulsion are incomplete, but experiments suggest that dispersed droplet boiling is significant under some conditions. The simulations provide insight into the conditions that must exist for this result to occur. There are still many unanswered questions in this field and several directions for fruitful further study are suggested.