Great article from Luke Wroblewski about the efficacy of building in Mobile Web or Native app. My take on this well-informed article is that when you want to reach the widest audience you develop for the Mobile Web. Yes, Native Apps have a potentially richer experience but the trade-off is ubiquity.
Luke ultimately argues for both paths but if you have limited resources you need to pick one path. That choice is based on audience reach versus richness of experience.
Find the whole article here on Luke W’s site.