Had an interesting meeting last night at the Kansas City Mobile Media Club Meetup.  There were about 10 guys that were interested in creating mobile apps: three were developers, and the rest were entrepreneurs that had ideas for mobile apps.  None of the entrepreneurs had made any money with mobile apps yet, but a couple of them had some really good ideas.  The biggest discussion last night was comparing web apps to native apps.  I think for applications where the content is most important, web apps make more sense.  One web app will work for both Android and iPhone, and updating the content is as easy as updating a web page (as opposed to trying to get the updated app approved by Apple).  But for apps that are more interactive (games or utilities, etc.) a native app will always be faster and more responsive.  This web page has an informative discussing web apps vs. native apps.  It's a good read if you want a quick run-down of the differences and relative merits that will get you pointed in the right direction for your mobile app.