Christina DesMarais has written a nice blog entry on the INC website about what it takes to help your app to really take off.
I won’t repeat her suggestions (they are her’s and you can/should read them here: http://www.inc.com/christina-desmarais/5-ways-to-make-your-mobile-app-take-off.html), but I will say that I completely agree.

I especially agree with number 3.  I have tried a lot of tools, SDKs, and other mobile solutions; none compare with Corona and the great people at Ansca Mobile.  They are quickly becoming the stand-out in the field, allowing the user to create mobile apps or games with ease for iPhone, iPad, and Android devices with one set of code.

And I am not saying I like Corona because I wrote the book, I wrote the book because I like Corona.  If you haven’t tried Corona for your mobile app development needs, you are missing out.  Oh, and buy my book, it will help you make your Corona based apps even faster!-)