I just wanted to compliment you, Jessica, on being a great tech reporter and one of the very best in the world of smartphones. I always enjoy your reviews and articles, insightful as this one is. Keep up the good work!
Well, +Jessica Dolcourt , since you're taking suggestions, the obvious favorite would be batteries. What is the science/chemist behind modern batteries and why isn't there the same degree of improvements as there is in processors or screens? What companies are investing R/D dollars on battery improvements? What are those improvements likely to be?