I looked at the statistics for the number of downloads of Kisses, that I had today.  It was interesting to see the different types of Operating System versions or Platforms that were indeed downloading the tool.  Over all, I had 3051 downloads for a period of about 6 weeks.  I started writing applications that I plan to sell and was faced with the tough decision of choosing features based on the specific OS revision.  If I set a base OS version, then I stood to loose a percentage of the BlackBerry users out there.  So I turned to my existing downloads and came up with this chart.  In the hopes that others find it useful, I’ve included it in this post.  Surprisingly, I thought there would be more users for 4.2 and 4.3 versions.  Thus, based on this, I will set my base version to 4.5.  This cuts out weeks of development time (mainly making workarounds).  Obviously these figures don’t paint the full picture, but they give me a fair idea of how to plan.