Thanks for this write-up! I would add that engagement with the mobile shopping app will be able to be key of mobile commerce in future. Social media and email marketing campaigns won't do the trick for these demographics, so it's important for merchants to get creative. One way to do this is through push notifications sent from a mobile commerce app which have a tap-through rate of about 40-50%. Email open rates hover around 15-20%. Mobile User are more likely to pick up their phones to see a notification and then shop than they are to take time reading a promo email or social post. That's why mobile app builders like http://simicart.com/ developes pushing notification feature as a key feature for retailers to boost their sales and their loyalty customers