iPhone application always has distribution problems. My only suggestion for you is to submit your application to some of the iphone application review websites. I did a google search and came up with some websites - http://www.appcraver.com/ and http://www.148apps.com/ . Try to provide them free applications for reviews.
Paul_Morgan has a very good advice of selling your application for $1. People tends to buy $1 application more than a application which costs more than $1. I have no statistic to back me up with this reasoning. But, it's obvious that many successful applications are sold for $1 like the recent Ocarina and iFart applications.
And, the more selling you made by selling your application for $1 will help you to get into top paid applications list. Once you get into the list, it means more selling.
Paul_Morgan has a very good advice of selling your application for $1. People tends to buy $1 application more than a application which costs more than $1. I have no statistic to back me up with this reasoning. But, it's obvious that many successful applications are sold for $1 like the recent Ocarina and iFart applications.
And, the more selling you made by selling your application for $1 will help you to get into top paid applications list. Once you get into the list, it means more selling.