Finally, a better way to research smart phone apps, smartphone market share and strategies. For all of you how do I monetize my app? people.
Gartner Research database has the industry analysis you'll need.
Simply Map (yes) has market share for smartphones for both local and national data. Do a search for a local area and you'll get both local and national data in an Excel file.
Don't try this without watching this tutorial on using Simply Map.