Thanks for the feedback guys.. @thedesolatesoul - Good idea on the month archive.. I did think about storing everything in the db but decided against it as it could get fairly large over time.
@kamac - Yep..I would like to know why they uninstall. I find it interesting where in the world the app is being installed. It's tough to rise above the noise of thousands of other apps and I believe a marketing plan is really the only way to do it. My other app, which I haven't put up here yet, is going through a slight change. My brother-in-law who is a marketing director for a fairly large corp along with my niece who is a graphics designer, are creating a marketing program that will be targeting specific groups. It will be interesting how it plays out.