Current understanding implies that an increased meal frequency may not significantly support weight loss. The body of knowledge is relatively limited though and food diary under reporting from participants of the studies i.e. they may be eating too bigger portions (bigger than they actually admit to) to promote weight loss, may be an issue.
What studies do suggest is when energy/calorie intake is reduced, increased meal frequency may decrease hunger, reduce nitrogen (protein) loss, promote lipid oxidation (fat burning), and reduce total and LDL (bad) cholesterol levels in the blood, and improve the insulin response enhancing muscle development and energy levels.
Therefore regular meals may not directly support weight loss, the answer to this is calorie control and energy expenditure, but it may well optimise body composition and boost fat burning. It does seem as though regular meals will support fat burning (if total calorie intake is controlled), aid muscle development through stabalising insulin and reducing protein breakdown, plus small, frequent calorie controlled meals probably reduce the onset of hunger. So for now at least, try to stick to 3 main meals and 3 calorie controlled snacks in between to optimise fat burning and muscle development.
La Bounty, P, M., Campbell, B, I., Wilson, J., Galvan, E., Berardi, J. et al. (2011). International Society of Sports Nutrition Position Stand: Meal Frequency. Journal of the international society of sports nutrition. 8:4.